
A step-through frame on 20 × 4.0 tires · one 750 W rear hub, 1500 W at peak · "High 85+Nm Torque" · 960 Wh from a removable 48 V 20 Ah pack · hydraulic discs, a fork and a rear shock · Shimano 8-speed · a rack and fenders · $999 · verified October 3, 2026
Quick Answer — The Samebike VOYAGER is a $999 step-through fat-tire e-bike on 20 × 4.0 tires: one 750 W rear hub (1500 W peak), a removable 960 Wh pack, hydraulic discs, a fork and a rear shock, a rack and fenders. A 180 lb rider holding 15 mph on the throttle over level pavement gets a computed 56 miles per charge.
Pedal along at an easy 75 W and this review's model stretches the same charge to 88 miles; Samebike's specification table prints 160 km (99 miles) as the maximum. Samebike recommends the bike for riders 160 to 210 cm (5'3" to 6'11"), and the saddle table gives every height from 5'3" to 6'4" its saddle distance.
Our price is $999, matching the listed price on Samebike's own US store on October 3, 2026, where $1,499 appears as the regular price. Black, White and Navy sell for the same money, and we ship it free anywhere in the contiguous United States.
Buy the VOYAGER in Dark GreenWhat this review covers
The specification · Which VOYAGER · Fit · Motor · Battery · Range · Brakes, lights and controls · Suspension and tires · Weight and load · The Mercer fit test · UL · Recalls · Class · Where to ride · Green and red flags · Verdict · Checklist · Buying from us · FAQ · Limitations · Bottom line · References
How we verified this Samebike VOYAGER review
Every VOYAGER figure here was read on October 2, 2026, and again on October 3, from Samebike's US product page, with its specification table, stat strip, feature panels, size chart, drawing and gallery, from the product record, the Voyager XT manual and our listing. Range and fit are computed from those inputs, and each section names where its numbers come from.
We checked each figure against Samebike's published specification and recomputed it, or cite it where it stands, so this is a specification-verified review. We also sell the VOYAGER, so give its red flags the same attention as its green ones.
Written by Milad Ghobadibeygvand, BScN (Western University, 2014). Corrections: support@redtailebikes.com.
The VOYAGER's specification, figure by figure
| Samebike's published figure | |
|---|---|
| Frame | High carbon steel, on the specification table and in the manual; a step-through frame; "Foldable: No" |
| Motor | one hub motor, in the rear wheel: 750 W with a 1500 W peak on the specification table, the title and the stat strip; "1500W PEAK Powerful Brushless Motor" on gallery image 25; one motor panel lower on the page reads "1000W (Peak 1800W)" |
| Torque | "High 85+Nm Torque" under the US page's title; "over 85+Nm high torque" in the product description; "85 Nm Motor Torque" on gallery image 25 |
| Battery | 48 V 20 Ah, 960 Wh, removable with a key: "48V 20Ah" on the specification table and stat strip; a "960Wh LG battery with smart BMS" on the range panel |
| Charge time | 6–8 hours on the specification table, the charging panel, gallery image 23 and in the manual; the charger is rated 54.6 V, 3 A |
| Top speed | 45 km/h (28.0 mph) on the specification table, stat strip and gallery image 25; one motor panel prints "max 50KM/H" |
| Range | 160 km "Max Range" on the specification table; 70–160 km on the stat strip; "160+KM range" in the opening line; "up to 93 miles" on the range panel; "over 100km range in mild electric mode" on the battery panel; "70-90 Miles Travel Range" on gallery image 23; 87–99 miles (140–160 km) pedal assist and 43–46 miles (50–55 km) pure electric in the manual |
| Climbing | "Max Angle of Climb 40 degrees" in the manual; "40° Max Slope" on gallery image 25 |
| Assist | 5 pedal-assist levels; a Torque Mode and a Cadence Mode on the "Intuitive Smart Riding" panel |
| Throttle | "Detachable throttle" on the specification table; labeled at the left grip on gallery image 24 |
| Brakes | "Φ180mm Hydraulic disc brakes" on the specification table |
| Suspension | "Dual-shock front fork" on the specification table and "Fork&Shock" on the stat strip; a rear shock with "Suspension Travel 30mm" on its panel; "140mm Distance traveled" on the "Dual Suspension Systems" panel |
| Gears | Shimano 8-speed |
| Tires | 20 × 4.0 in |
| Display | "LCD display" on the specification table; speed, battery level, assist level, trip and total distance, time and voltage in the manual |
| Lights and horn | LED headlight and taillight on the "Safe Riding Taillights" panel and gallery image 17; "Electric Horn Installed" in the manual |
| USB | "USB Charger: No" on the specification table; one panel mentions "convenient USB ports for charging your devices" |
| Rack and fenders | a rear rack and front and rear fenders in the manual's overall view and every studio photograph; the manual's assembly steps fit the fenders |
| Weight | 39.5 kg (87.1 lb) on the specification table and the size-and-fit drawing; 87 lb (39.5 kg) in the manual |
| Load capacity | 150 kg (330.7 lb) on the specification table, stat strip and drawing; "Max Load 265 lbs (120kg)" in the manual's specification table |
| Size | 172 × 63 × 113–125 cm on the specification table; 1730 × 620 × 1210 mm in the manual |
| Seat height, as listed | 810–960 mm (31.9–37.8 in) on the size chart |
| Handlebar | "Adjustable" on the specification table; 630 mm (24.8 in) wide; total height 1130–1250 mm (44.5–49.2 in) on the size chart |
| Wheelbase | 1120 mm (44.1 in) |
| Rider height | 160–210 cm (5'3"–6'11") on the size-and-fit drawing |
| Water resistance | IP64 for "the entire bike" in the page's FAQ; IP54 on gallery image 23; IP34 in the manual |
| Colors | Black, White, Navy and Dark Green; our listing carries all four |
Each row was taken on October 2, 2026, and read again on October 3, from Samebike's product page, meaning its title line, specification table, stat strip, feature panels, size chart, drawing, gallery and FAQ, and from the manual's specification page. When two Samebike documents give different figures, the row carries both, the section that relies on the figure says which one it plans on, and Limitations item 16 collects every pair.
The STORM's 960 Wh on a 20-inch step-through
Think of a compact fat-tire bike with no top tube: the frame dips low between the seat tube and the head tube, the pack runs down the front of the frame, a rack and fenders are part of the bike, a fork carries the front wheel and a coil shock sits behind the seat tube, with one hub motor turning the back wheel.
Samebike's US store lists it as the "VOYAGER Large Battery Fat Tire Powerful Peak 1500W City Electric Bike", under the line "High 85+Nm Torque,Powerful Motor,4.0'' Fat Tire,All-terrain". Its manual names the model Voyager XT, and the SKUs on the product record begin VOYAGER-XT-FT and end in -US.

Gallery image 20 on Samebike's VOYAGER page: a Dark Green and a Navy VOYAGER on a coastal dirt road. Both colors are on our listing, with Black and White.
The pack is the reason to look. By the US specification tables of the eleven Samebike models we sell, read October 3, 2026, three carry Samebike's largest single pack, 48 V 20 Ah (960 Wh): the STORM and the CREST at $1,599, and the VOYAGER at $999. Of the six we sell at $999 or less it carries the most, against 864 Wh on the M20 and 720 Wh on the RS-A02 Pro and the LO26 Plus.
By the same tables, the VOYAGER is also the only one of those six with an eight-speed Shimano drivetrain; the other five list seven speeds.

Gallery image 19: a White and a Dark Green VOYAGER parked on the sand, the VOYAGER XT name near the White frame's head tube.
One name, more than one bike. Samebike's European store sells a VOYAGER of its own, with a "48V 15Ah" pack it describes as 720 Wh, "80+Nm" and a €1,299 price on SKUs ending in -EU; this review follows the US store's bike, the one our listing matches.
Search results for "Voyager" e-bikes also turn up other makers' models; the manual's Voyager XT name, the -US SKUs and the 960 Wh step-through with a rack are how to tell this one apart.
Will the VOYAGER fit you?
Samebike sizes the VOYAGER for riders 160 to 210 cm (5'3" to 6'11"), and a pedaling formula puts the saddle top 32.8 to 41.0 inches from the pedal for the median rider from 5'3" to 6'4". The saddle is listed 810 to 960 mm (31.9 to 37.8 inches) above the ground, so the question for your leg is how far the pedal sits below the saddle.
The formula sets the saddle 109% of your inseam from the pedal axle at the bottom of the stroke, the setting Peveler and colleagues compared against knee angle.
The inseams come from the 6,068 people measured in the US Army's 2012 anthropometric survey. Samebike prints the saddle's height off the ground and neither a bracket height nor a crank length, so this section gives each height its distance and leaves the last inch to a tape measure.
Three steps fit you to it:
- Take your inseam barefoot. With your back to a wall, push a hardcover book up between your legs the way a saddle sits, and measure from the floor to the spine.
- Read your row in the saddle table for the saddle-top-to-pedal distance.
- Set it on the bike with one crank pointing down along the seat tube, measuring from the saddle top to the center of that pedal.

Samebike's size-and-fit drawing, its saddle and bar each drawn at two settings; the formula subsection shows why nothing is measured on it.
How high should my saddle sit?
Set the saddle top this far from the pedal axle. The middle column is 109% of your height's median inseam, and the last two mark the ends of the range Ferrer-Roca and colleagues published, 106 and 110.4%.
| Your height | Typical inseam | Saddle top to pedal axle | At 106% | At 110.4% |
|---|---|---|---|---|
| 5'3" | 28.7–31.6 in | 32.8 in | 31.9 in | 33.2 in |
| 5'4" | 29.1–32.2 in | 33.3 in | 32.3 in | 33.7 in |
| 5'6" | 30.2–33.5 in | 34.5 in | 33.6 in | 34.9 in |
| 5'8" | 31.1–34.3 in | 35.6 in | 34.6 in | 36.0 in |
| 5'10" | 32.2–35.5 in | 36.8 in | 35.8 in | 37.3 in |
| 6'0" | 33.2–36.7 in | 38.1 in | 37.0 in | 38.6 in |
| 6'2" | 34.3–37.5 in | 39.3 in | 38.2 in | 39.8 in |
| 6'4" | 36.3–39.1 in | 41.0 in | 39.9 in | 41.6 in |
Built from the survey's 6,068 bodies: the inseam column runs from the 5th to the 95th percentile at each height, and the three distances are for that height's median inseam. Your own inseam moves the figure 1.09 inches for every inch.
The reason to aim for it: at the formula height the knee bends 25 to 35 degrees at the bottom of each stroke (Peveler et al., 2007), enough to push without locking the leg.
Samebike measures its 810 to 960 mm to the ground, and the pedal axle sits above the ground even at the bottom of its stroke. Its drawing runs those two lines from the floor up to the saddle, so the saddle-to-pedal distance is less than the listed height by the pedal's own height, which Samebike does not publish; a tape measure on the bike closes that gap in a minute.
Can I step through it at a stop?
Yes: there is no top tube, and you stand over the low point of the frame between the seat tube and the head tube. Samebike's size chart gives no standover height for the VOYAGER, and its drawing did not hold to one scale, so this page prints no step-over figure.
Check it at home with the same book you used for your inseam: measure from the floor to the top of the frame at its lowest point, then subtract that from your barefoot inseam, and what is left is your clearance with both feet down.
Mount it the way the frame invites: stand beside the bike, put one foot through the low point of the frame and sit back onto the saddle; at a stop, slide forward and plant both feet with the frame between your knees.
Would you rather have a top tube to grip with your knees? The STORM review covers the same 960 Wh pack under a top tube Samebike lists at 32.3 inches, on 26-inch wheels.
Will I feel cramped, or stretched?
Your lean is not computed here, because Samebike publishes no grip position, seat angle or bracket height for the VOYAGER, and its drawing did not hold to one scale (the formula subsection prints each comparison).
What Samebike gives you instead is a bar you can raise. The specification table lists the handlebar as "Adjustable", the size chart moves the total height from 1130 to 1250 mm (44.5 to 49.2 inches), and the manual sets it by pressing the stem's buckle, lifting the stem and locking the buckle again, noting that "the height of the stem cannot exceed the highest mark".
Given three trunk angles to try, the twenty recreational cyclists in Priego Quesada et al., 2017 rated the most upright the most comfortable, so start with the bar high and lower it only if steering feels vague.
For a posture closer to a chair, the M20 review's reach table puts its median 5'8" rider just 4 degrees off vertical, on the same 20 × 4.0 tires.
How much weight goes through my wrists?
Not computed either, for the same reason. How much of your weight reaches the grips follows from your lean, and the lean needs a grip position Samebike does not print.
For scale, ten road racers on their brake hoods in Carahalios's 2015 laboratory study carried 15% of their weight on the bars, and among 36 riders measured by Slane et al., 2011, pressure over the ulnar nerve where it crosses the palm was greatest in the longest, most-leaned position.
Set it by feel: raise the bar until your shoulders drop and your elbows soften, then ride a few blocks before you move it again. If your wrists tingle on longer rides, raise the bar before you change anything else, since Slane's riders showed the most palm pressure in the most-leaned position.
How do I set it up when it arrives?
Six jobs come out of the box: the handlebar stem, the front fender and headlight, the front wheel, the rear fender strips, the pedals and the saddle, and the pack wants a full charge before the first ride. The Voyager XT manual walks through each, and the box holds the bike, the charger, two large wrenches and six Allen keys.
The front wheel goes into the fork with its quick-release clamp, the manual says, "making sure the caliper is in the caliper slot", and the lever locks it. The pedals carry L and R marks: the right one tightens clockwise and the left counterclockwise, and the manual warns that a pedal fitted upside down damages the thread.
Set the saddle from your row in the table, then prove it with your heel: loosen the quick-release lever, slide the seat post to height, and lock the lever again. Put your heel on the pedal at the bottom of the stroke and your leg should be straight; for the 19 cyclists in Peveler et al., 2005, that heel check put the knee inside the 25-to-35-degree range 70% of the time.
Before each ride the manual asks you to check the brakes, wheels, handlebar, folding buckle and quick-release parts. To switch it on, hold the display's power button.
How we computed fit
A single rule builds the saddle table: the saddle top sits 1.09 times your inseam from the pedal axle at the bottom of the stroke. For a 5'8" rider on the median 32.6-inch inseam, that is 35.6 inches; LeMond's rule, 88.3% of inseam from the crank axle, gives the same rider 28.8 inches.
The two rules start from different points, the pedal and the crank axle, and moving between them takes a crank length Samebike does not list, so both appear as their authors published them.
| Input | Value | Source |
|---|---|---|
| Rider bodies | 6,068 (4,082 men, 1,986 women) | US Army ANSUR II, 2012 |
| Saddle formula | 109% of inseam; range 106–110.4% | Peveler et al., 2005; Ferrer-Roca et al., 2012 |
| Saddle height above the ground | 810 to 960 mm (31.9 to 37.8 in) | Samebike's size chart |
| Rider window | 160 to 210 cm (5'3" to 6'11") | Samebike's size-and-fit drawing |
| Wheelbase | 1120 mm (44.1 in) | Samebike's size chart |
| Bracket height, crank length, seat angle, standover, grip position | not published | Samebike's US page and the manual, read October 3, 2026 |
We checked the drawing as a measuring source, and it does not hold to a single scale. Scaled by the 1120 mm wheelbase, between axle centers found by fitting a circle to each tire, it reproduces one of Samebike's other printed dimensions within 3.5%, the total length:
| Dimension, as Samebike lists it | Listed | On the drawing | Gap |
|---|---|---|---|
| total length, the bike's own extent | 67.7 in | 67.8 in | +0.1% |
| seat height, lowest, read to the seat clamp | 31.9 in | 29.6 in | −7.3% |
| seat height, highest, read to the seat clamp | 37.8 in | 35.4 in | −6.2% |
| seat height, lowest, read to the saddle top | 31.9 in | 34.0 in | +6.6% |
| seat height, highest, read to the saddle top | 37.8 in | 39.9 in | +5.5% |
| total height, lowest, read to the grip center | 44.5 in | 50.9 in | +14.3% |
| total height, highest, read to the grip center | 49.2 in | 56.8 in | +15.4% |
Points read on Samebike's drawing at its published wheelbase. Samebike's own red dimension lines for the seat heights and total heights measure 5.2 to 13.1% longer than their labels at the scale its wheelbase and length lines share, so the drawing illustrates the two settings rather than measuring them, and no grip position or crank length is taken from it.
Send your height and barefoot inseam to support@redtailebikes.com before you order, and we will reply with where the saddle should sit for you. Black is on this button, and White, Navy and Dark Green cost the same $999.
Buy the VOYAGER in BlackThe motor: 750 W in the rear hub, 1500 W at peak
Samebike's specification table rates the VOYAGER's motor at 750 W with a 1500 W peak, and the product description reads: "Its powerful 750W motor can peak to 1500W." Gallery image 25 labels it a "1500W PEAK Powerful Brushless Motor" beside "85 Nm Motor Torque".
Lower on the same page, one motor panel, headed "Powerfukl Brushless Hub Motor", prints "High-performance 1000W (Peak 1800W)" and "max 50KM/H"; the specification table, the title, the stat strip, the description and gallery image 25 all print the 750 W, 1500 W and 45 km/h figures this review plans on.

The hub photograph from the motor panel on Samebike's VOYAGER page: the motor turns the back wheel, with the freewheel and derailleur beside it.
One motor, not two. The page's "What is VOYAGER" line calls it "a high-performance dual-motor eBike", while its specification table lists a single 750 W motor and the manual's overall view labels one motor, at the rear wheel.
Throttle, pedals, or both together. The "Intuitive Smart Riding" panel names a "Torque Mode - Instant power for when you need extra speed or tackle hills" and a "Cadence Mode - Smooth, steady assist for effortless, comfortable rides", the battery panel mentions "a torque sensor and high-torque motor", and the display's assist runs "0-5" in the manual.
The "Max-Throttle Power" panel describes the throttle as "steady, ready power whenever you need it". Choose gears for your legs; the pack pays by the watt. A hub motor spins with the wheel in every gear, so the battery's draw follows what you add at the pedals, and the gear table prices each effort.
The battery: 48 V × 20 Ah = 960 Wh
Multiply 48 volts by 20 amp-hours and you get 960 watt-hours, the capacity every range figure below divides into. The range panel calls it a "960Wh LG battery with smart BMS", and the specification table and stat strip print "48V 20Ah".
Samebike's battery panel describes a "960Wh seat-integrated battery"; gallery image 23 draws the pack inside the down tube, and the studio photographs show it there, under the SAMEBIKE wordmark.
Taking it out, per the manual, goes key first: turn it and the pack pops out slightly, rotate the retaining clip, then press the top of the pack with both hands and pull it free. You can charge it in the frame or on a counter, through a port under a rubber cover, and the charger's indicator light shows it is charging.

The pack along the down tube, from the battery panel on Samebike's VOYAGER page.
The charger is rated 54.6 V and 3 A in the manual; 20 Ah at 3 A is about 6.7 hours by straight division, inside the 6 to 8 hours Samebike prints on its specification table and charging panel and in the manual. Charge and store the pack between 32 and 104 °F, the range the manual sets, and only with Samebike's charger.
Split into 960 Wh, each of Samebike's range figures reveals the watt-hours per mile it assumes:
| Samebike's figure | Watt-hours per mile it allows |
|---|---|
| 160 km (99 miles), "Max Range" | 9.7 |
| up to 93 miles, pedal-assist level 1, the range panel | 10.3 |
| 70–90 miles, "Travel Range", gallery image 23 | 10.7–13.7 |
| 140–160 km (87–99 miles), pedal assist, the manual | 9.7–11.0 |
| over 100 km (62 miles), "mild electric mode", the battery panel | 15.4 |
| 43–46 miles, pure electric, the manual's miles | 20.9–22.3 |
| 70 km (43 miles), the stat strip's low end | 22.1 |
| 50–55 km (31–34 miles), pure electric, the manual's kilometers | 28.1–30.9 |
Each row is 960 Wh divided by Samebike's distance; the range section finds the steady ride that matches it. The manual prints "43-46miles" beside "50-55 km" on its pure-electric line, two distances that do not agree, so each has a row.
How far the VOYAGER goes on one charge
For a 180 lb rider on level pavement, a full pack gives about 56 miles at 15 mph on the throttle, 39 at 20 mph, and 88 at 15 mph with easy pedaling. Hold a 4% climb at 10 mph on the throttle and the same charge lasts about 20 miles.
Work out your own ride in three steps:
- Read your cruising speed and pedaling effort off the first two tables.
- For every 1,000 feet of climbing, add 166 to 226 Wh, the throttle's cost at 10 mph in the hill table.
- Correct for your weight and the air temperature, then plan on three-quarters of the result.
One steady-state calculation produces every number here, built on Samebike's specifications, a comparable Bafang hub motor's published curve, ten fat tires measured on a drum and a cycling-power model validated against riders on an open road; the formula subsection carries one mile through it.
Does riding faster cut range? Miles at each speed
Sharply. At 10 mph on the throttle a full charge runs 78 miles; at 20 mph it runs 39, since the power the air takes grows with the cube of your speed.
| Speed, flat | Per mile | Full charge | With 25% kept |
|---|---|---|---|
| 10 mph | 12.2 Wh | 78 mi | 59 mi |
| 12 mph | 13.9 Wh | 69 mi | 52 mi |
| 15 mph | 17.1 Wh | 56 mi | 42 mi |
| 18 mph | 21.2 Wh | 45 mi | 34 mi |
| 20 mph | 24.4 Wh | 39 mi | 29 mi |
Throttle only, level pavement, 77 °F air, 180 lb aboard a bike of 87.1 lb, Samebike's own 39.5 kg. The last column keeps a quarter of the pack in hand, the share one pedelec held back in a standard laboratory range test (Schmitt, Decker and Doppelbauer, 2019).
The table stops at 20 mph: the modeled motor, its unloaded speed set at Samebike's 45 km/h, holds no steady speed above about 24.2 mph on level pavement with 180 lb aboard.
Pedaling moves the number most: add 75 W at 15 mph and a full charge goes from 56 miles to 88. Easy here means 75 W and steady means 150 W; with the motor switched off, those outputs alone would carry this bike across flat ground at about 8.9 and 13.0 mph, which tells you which column you ride in.
| Speed, flat | Throttle only | Easy pedaling (75 W) | Steady pedaling (150 W) |
|---|---|---|---|
| 15 mph | 56 mi | 88 mi | 184 mi |
| 18 mph | 45 mi | 60 mi | 88 mi |
| 20 mph | 39 mi | 49 mi | 64 mi |
Full-pack miles on level pavement with 180 lb aboard. At 15 mph, easy pedaling leaves the pack 10.9 Wh a mile to supply, against 17.1 on the throttle alone. The 184-mile cell leans hardest on your own steady output and on the motor's losses at light load, the model's least certain input (Limitations item 4).
The manual's own advice points the same way: for "the best endurance mileage" it says "please use assist mode", avoid frequent braking and starts from a standstill, do not overload, and check the tire pressure before riding.
Which gear saves battery?
Shift for comfort, because only your pedaling saves the pack. The rear hub turns with the wheel in all eight gears, so the battery's draw moves only with the watts you contribute:
| Your ride | Throttle only | Easy pedaling (75 W) | Steady pedaling (150 W) |
|---|---|---|---|
| 15 mph, flat | 17.1 Wh | 10.9 Wh | 5.2 Wh |
| 20 mph, flat | 24.4 Wh | 19.6 Wh | 14.9 Wh |
| 12 mph, 4% grade | 47.7 Wh | 36.7 Wh | 26.8 Wh |
| 12 mph, 8% grade | 95.9 Wh | 80.1 Wh | 65.9 Wh |
What each mile costs the battery, in watt-hours, with a 180 lb rider.
On a hill the cogs earn their place indirectly: 150 W from your legs at 12 mph on a 4% grade drops the battery's bill from 47.7 Wh a mile to 26.8, and only a low gear lets you hold 150 W at that speed.
Does going uphill drain the battery faster?
Much faster: on the throttle at 10 mph, each 1,000 feet of climbing on a 4 to 10% grade uses 166 to 226 Wh more than the same distance on the flat. Lifting 267.1 lb of rider and bike through 1,000 feet takes about 101 Wh at the wheel, and the motor's and the pack's losses make up the rest.
| Grade | Per mile, throttle | Full charge, throttle | Full charge, easy pedaling |
|---|---|---|---|
| 2% | 28 Wh | 34 mi | 57 mi |
| 4% | 47 Wh | 20 mi | 29 mi |
| 6% | 70 Wh | 14 mi | 18 mi |
| 8% | 98 Wh | 10 mi | 12 mi |
| 10% | 131 Wh | 7 mi | 9 mi |
| 12% | 172 Wh | 6 mi | 7 mi |
Every row at 10 mph with 180 lb aboard: the throttle alone in the middle columns, easy pedaling (75 W) added in the last. The table stops at 12% because holding 10 mph up a 15% grade takes more than the 750 W the model allows its motor to deliver (Limitations item 6).
Cost a hilly ride in two pieces and add them. A commute of 10 flat miles at 15 mph with a 500-foot climb at 6% comes to about 171 Wh plus about 92, or some 263 of the pack's 960; the model holds one steady speed, so stop-and-go traffic and headwinds add to it.
Does rider weight affect range?
A little on the flat and a lot on hills. Extra pounds load the tires and the climb but leave the air's share unchanged, so they count for more the steeper the road.
| You plus your load | 15 mph flat, throttle | 20 mph flat, throttle | 8% climb, 10 mph |
|---|---|---|---|
| 100 lb | 64 mi | 43 mi | 16 mi |
| 130 lb | 61 mi | 42 mi | 13 mi |
| 180 lb | 56 mi | 39 mi | 10 mi |
| 220 lb | 53 mi | 38 mi | 8 mi |
| 265 lb | 49 mi | 36 mi | 6 mi |
Rider plus cargo on the 87.1 lb bike, throttle only. The bottom row is 265 lb, the "Max Load" in the manual's specification table and the lower of Samebike's two load figures.
Moving from 180 lb to 265 lb trims the 15 mph level ride from 56 miles to 49, and the 10 mph climb at 8% from 10 miles to 6.
Does cold weather drain the battery?
Yes: freezing air takes the 15 mph throttle ride from 56 miles to about 44. The table stops at 32 °F, the temperature below which the manual says the bike is not intended to be used or stored.
| Air | Pack energy vs 77 °F | 15 mph flat, throttle |
|---|---|---|
| 95 °F | 99% | 59 mi |
| 77 °F | 100% | 56 mi |
| 68 °F | 98% | 53 mi |
| 50 °F | 93% | 48 mi |
| 41 °F | 91% | 45 mi |
| 32 °F | 89% (80–93) | 44 mi (40–46) |
Level pavement, 180 lb, throttle only. The central line interpolates McMaster University's LG HG2 cell measurements at 0.5C discharge with the cells at air temperature, and the brackets carry the spread of other published cell tests, which widens toward freezing (Limitations item 9).
Three things shift together in the cold. At 32 °F the pack delivers about 89% of its 77 °F energy, and the air is about 9% denser by the gas law behind the U.S. Standard Atmosphere.
The tires stiffen too. For every degree Celsius of cooling the model adds about 0.9% to rolling resistance, a rate between Rothhämel's fit for a 42 mm tire and the road-tire average in Bicycle Rolling Resistance's temperature test, and keeps it level below 41 °F.
Do the fat tires cut range?
The tire alone spreads a 15 mph level ride across 13 miles: 52 on the stickiest of ten measured fat tires, 65 on the freest-rolling. Bicycle Rolling Resistance's drum ran ten 26 × 4.00 tires at 12 psi, reading 23.2 to 42.1 W, and the model takes their median.
| Rolling resistance | 15 mph flat, throttle | 20 mph flat, throttle |
|---|---|---|
| 0.0070 · the lowest of ten fat tires | 65 mi | 44 mi |
| 0.0105 · the median of ten fat tires (used) | 56 mi | 39 mi |
| 0.0126 · the highest of ten fat tires | 52 mi | 37 mi |
Full-pack miles for 180 lb on the throttle over level pavement. Kenda's Juggernaut Pro needed the most power of the ten on the drum and Schwalbe's Jumbo Jim LiteSkin the least; the VOYAGER's 20 × 4.0 tires are not in the drum's set (Limitations item 8).
On pressure, the manual points you to the tire itself: "According to the actual information on the tire". Read your sidewall before you pump, since a soft 4-inch tire costs miles.
How you sit counts for more as speed rises. Tengattini and Bigazzi measured drag areas at the roadside, 0.640 m² for 37 upright cruiser riders (the figure used here) and 0.603 m² for 90 everyday mountain-bike riders; riding like the second group adds about 1.8 miles at 20 mph (39.3 to 41.1 miles before rounding).
Samebike's 160 km and 93 miles, turned into rides
Samebike prints eight range figures for the VOYAGER across its page, its gallery and its manual, and each one fits a different steady ride. Its range panel ties the 93 miles to pedal-assist "Mode 1, Level 1", and its battery panel ties the 100 km to "mild electric mode".
- 160 km (99 miles), the specification table's "Max Range", the stat strip's top end and the description's "160km in pas mode", allows 9.7 Wh a mile: easy pedaling at about 14.2 mph, or steady pedaling near 17.4. The throttle alone does not stretch that far at any speed from 5 mph up.
- Up to 93 miles, the range panel's figure, "Measured in Mode 1, Level 1 pedalassist under controlled conditions", allows 10.3 Wh a mile: easy pedaling near 14.7 mph, steady near 17.7, or the throttle alone at about 6.7 mph.
- 70 to 90 miles, gallery image 23's "Travel Range", allows 10.7 to 13.7 Wh a mile: easy pedaling at 14.9 to 16.8 mph, or the throttle alone at 7.5 to 11.8 mph.
- 140 km (87 miles), the low end of the manual's pedal-assist band, allows 11.0 Wh a mile: easy pedaling near 15.1 mph, steady near 18.1, or the throttle alone at about 8.2 mph.
- Over 100 km (62 miles), the battery panel's "mild electric mode" figure, allows 15.4 Wh a mile: about 13.6 mph on the throttle alone.
- The manual's 43 to 46 pure-electric miles, and the stat strip's low end of 70 km (43 miles), need 20.9 to 22.3 Wh a mile: a steady 17.8 to 18.8 mph on the throttle.
- That manual line's kilometers, 50 to 55 (31 to 34 miles), need 28.1 to 30.9 Wh a mile, about 22.0 to 23.4 mph on the throttle.
The manual names no speed, load or weather for its figures; here its longest fit gentle pedaling and its shortest a brisk ride on the throttle.
Plan on three-quarters of any full-charge number. Measured on a full-system test bench, one pedelec released 75% of its rated energy and kept the rest in reserve (Schmitt, Decker and Doppelbauer, 2019); treat the 56-mile throttle ride at 15 mph the same way and it becomes a 42-mile plan.
Pick your row and leave a quarter of the pack in it. On the throttle at 10 mph each 1,000 feet of climbing adds 166 to 226 Wh, and pedaling trims that. It gives a 180 lb rider a planning figure of about 42 flat miles at 15 mph on the throttle, and about 66 with easy pedaling at the same speed.
A 10-mile flat ride at 15 mph with 500 feet of 6% climbing uses about 263 Wh on the throttle, 37% of the 720 Wh a 75% plan leaves. Tell us your route's length, climbing and pace and what you weigh with cargo at support@redtailebikes.com, and we will run it through this model before you buy the White VOYAGER at $999 (also in Black, Navy and Dark Green).
Buy the White VOYAGERThe formula behind every range figure
Holding a steady speed means supplying steady power at the rear wheel. Martin and colleagues (1998) set that power, in still air, as one equation and checked it against the output of riders on an open road:
Wheel power at a steady speed: P = v × [ m·g·(Crr·cos θ + sin θ) + ½·ρ·CdA·v² ]
In it, v is speed; m is rider, cargo and bike together, g is gravity and θ the slope; Crr is the tires' rolling resistance, with 0.0105 meaning a drag of 1.05% of the load they carry; ρ is the density of the air; and CdA is the drag area, how big a hole the rider punches through the air.
Between the wheel and the battery the power passes four stages:
- Your legs drive through a chain that Martin and colleagues measured at 97.7% efficiency, and the motor makes up the balance.
- The motor is modeled on published data for a comparable one: in Bafang's 2021 OEM workbook, the RM G0H0 geared hub turns 510 rpm unloaded and 426 rpm at its rated point, where it is at least 80% efficient. The model rescales that curve to the VOYAGER's 48 V and 750 W, puts its unloaded speed at 28.0 mph from Samebike's 45 km/h, holds its output to the 750 W rating and caps torque at 85 N·m.
- The pack loses a few percent of its energy as heat inside the cells, a loss Arango, Lopez and Ceren measured on a 48 V e-bike battery.
- Watt-hours per mile are the battery's output in watts divided by the speed in mph, and the miles are the 960 Wh, corrected for temperature, divided by that.
| Input | Value used | Where it comes from |
|---|---|---|
| Bike | 87.1 lb (39.5 kg), the weight on Samebike's specification table, its drawing and in the manual | Samebike's specification table |
| Rider and cargo | 180 lb; the weight table runs 100 to 265 lb | 265 lb is the "Max Load" in the manual's specification table |
| Battery | 48 V × 20 Ah = 960 Wh | Samebike's specification table and its range panel |
| Motor | one, 750 W rated at 48 V, 28.0 mph unloaded, 80% at the rated point, output held to 750 W, torque capped at 85 N·m | Bafang OEM workbook 2021, RM G0H0, rebased to Samebike's figures; the cap is the low end of "85+Nm" |
| Wheel | 22.8 inches across | the M20-III's size chart, "Tire Width 22.8"", drawn across the whole wheel, for the same 20 × 4.0 tire; the VOYAGER's drawing measures 23.1 inches |
| Rolling resistance | 0.0105, the median of ten 26 × 4.00 fat tires at 12 psi | Bicycle Rolling Resistance |
| Drag area | 0.640 m², 37 upright cruiser riders | Tengattini and Bigazzi, 2018 |
| Chain | 97.7%, your pedaling only | Martin et al., 1998 |
| Battery losses | about 3% at 15 mph, more on climbs | Arango, Lopez and Ceren, 2021 |
| Air | 77 °F at sea-level pressure, 1.184 kg/m³ | U.S. Standard Atmosphere, 1976 |
| Cold | the share of a cell's energy left at each temperature | McMaster University's LG HG2 cell data |
| Reserve | 25% kept in the pack | Schmitt, Decker and Doppelbauer, 2019 |
One mile worked out by hand: 15 mph on the throttle, level pavement, 180 lb aboard. Rolling resistance claims 83.97 W and the air 114.23 W, so the wheel needs 198.20 W.
The 22.8-inch wheel turns 221 rpm at that speed. Rebased from Bafang's data to 48 V and 750 W, the model's motor has 1.112 N·m of torque per amp, 0.405 Ω in its windings and 0.83 A of no-load current, so the 8.56 N·m the wheel asks for draws 8.52 A at 80% motor efficiency.
Add the pack's own losses and the cells deliver 257.06 W, which is 17.14 Wh a mile at 15 mph: 960 ÷ 17.14 gives 56.0 miles, or 42.0 with a quarter kept back.
How the model was checked. Every link reproduces a number its own source published:
| Check | Published figure | This model |
|---|---|---|
| Road physics, Martin and colleagues' worked example | 45.7 W for tires and grade, 158.8 W for the air | 45.7 W and 158.8 W |
| The comparable motor at Bafang's rated point | at least 80% efficient | 80% |
| Samebike's own pure-electric figure | 43–46 miles, in the manual | 43 to 46 miles at a steady 18.8 to 17.8 mph on the throttle |
One benchmark per link: Martin and colleagues' Appendix I example for the road physics (8.36 m/s, a 90 kg system on a 0.3% grade), Bafang's rated point for the RM G0H0, and the manual's pure-electric miles for the whole chain.
The documents read for this review include no ride of a VOYAGER to an empty pack with its speed and load written down, and Limitations item 5 sets out what that leaves open.
Brakes, lights, horn and the cockpit
Hydraulic discs front and rear, on 180 mm rotors. Samebike's specification table lists "Φ180mm Hydraulic disc brakes", and its brake panel says they give reliable stopping power with less maintenance and help safety and control on every ride.

The rear rotor and caliper, from the "Hydraulic disc brakes" panel on Samebike's VOYAGER page.
For a hard stop, the manual asks you to brake the rear wheel first and then the front, since grabbing the front brake suddenly at speed can tip the bike over.
The display in the manual shows speed, battery level, the assist level, trip and total distance, trip time and voltage, with five bars of battery, and shuts itself off after 10 idle minutes. Its "Boost mode", started with a 2-second hold, "can only be used when the user is pushing the electric bike", the manual says.

Right-hand controls, from the "Shimano 8-Speed Gearing" panel; gallery image 24 labels the throttle and horn at the left grip.
Built in: a headlight, a taillight and a horn. The "Safe Riding Taillights" panel describes "front and rear dual LED lights", gallery image 17 shows both lit under the heading "Integrated Lighting System", and the manual lists an electric horn; holding the light button turns the display and headlight on together.

The rear rack and taillight, from the "Safe Riding Taillights" panel on Samebike's VOYAGER page.
On USB, Samebike's documents differ: the specification table lists "USB Charger: No", while the "Intuitive Smart Riding" panel mentions "convenient USB ports for charging your devices". If a charging port matters to you, ask us before you order and we will get Samebike's answer for the bike you would receive.
Fork, rear shock and 4-inch tires
Suspension at both ends. The specification table says "Dual-shock front fork" and the stat strip "Fork&Shock"; the rear-shock panel lists "Suspension Travel 30mm", and the "Dual Suspension Systems" panel, which prints "140mm Distance traveled", says the pair is there for "a smooth and comfortable ride in rough or uneven conditions".

The rear shock, from the rear-shock panel on Samebike's VOYAGER page; gallery image 26 highlights the fork and this shock under the words "Dual Front And Rear Shock Absorbers".
In the studio photographs the coil shock sits behind the seat tube, where the rear swingarm pivots, and the manual's overall view labels a front suspension and a rear suspension.
The tires are 20 × 4.0 on the specification table, and the product description says they "can handle snow, sand, gravel, asphalt, and concrete surfaces". The tire table turns them into miles, and after rain or snow the manual asks you to dry the bike as soon as it is indoors.
Weight, load and the space it needs
Samebike prints the VOYAGER's weight in three places and the numbers agree: 39.5 kg (87.1 lb) on the specification table and on the size-and-fit drawing, and 87 lb (39.5 kg) in the manual, where the carton weighs 98 lb (44.5 kg). The range figures use 87.1 lb.
Plan on 265 lb as the limit for rider and cargo together. A 150 kg (330.7 lb) payload appears on the specification table, the stat strip and the drawing, while the manual's specification table gives "Max Load 265 lbs (120kg)". Over 265 lb? Email us and we will ask Samebike which figure applies before you order.
The carton is 1420 × 280 × 720 mm (55.9 × 11.0 × 28.3 inches) per the manual, a job for two people at the curb. The VOYAGER does not fold, and at 172 × 63 × 113–125 cm (67.7 × 24.8 × 44.5–49.2 inches) on the specification table, or 1730 × 620 × 1210 mm in the manual, it wants a garage, hallway or hitch rack that takes it whole.
Measure the parking spot and line up a second pair of hands. The VOYAGER runs 67.7 inches long and up to 49.2 inches tall at its highest bar, and at about 87 lb it is a two-person lift onto a car rack or up a stairway; take the pack out first and the load drops.
The Mercer fit test
The Mercers, the same seven people in every review we publish, are set against this bike so you can compare fit answers from page to page. Every verdict comes from a figure Samebike prints (the rider window, the saddle range, the load) or from the fit tables built on them.
| Member | Age · Height | Verdict | The number behind it |
|---|---|---|---|
| Frank Kowalski | 63 · 5'10" | Inside Samebike's window | Window 5'3" to 6'11"; the formula sets his saddle top 36.8 in from the pedal for the median rider his height |
| Ruth Kowalski | 61 · 5'5" | Inside the window, and the step-through suits her | Window 5'3" to 6'11"; the formula sets her saddle top 33.8 in from the pedal |
| Jack Mercer | 48 · 6'1" | Inside the window | Window 5'3" to 6'11"; the formula sets his saddle top 38.8 in from the pedal |
| Dana Mercer | 45 · 5'7" | Inside the window | Window 5'3" to 6'11"; the formula sets her saddle top 35.1 in from the pedal |
| Maya Torres | 32 · 5'6" | Inside the window | Window 5'3" to 6'11"; the formula sets her saddle top 34.5 in from the pedal |
| Cole Mercer | 16 · 5'11" | Set by his state | His state's age rule for e-bikes decides whether a 16-year-old may ride it; at 5'11" he sits inside the window |
| Ivy Mercer | 12 · — | Set by her state | The manual sends riders to their local law, and our 50-state atlas prints each state's minimum age |
All five adults fit Samebike's window, from Ruth at 5'5" to Jack at 6'1". For the two shortest, the step-through matters most: Ruth and Maya mount and stop without lifting a leg over anything, and the only fit job left is setting the saddle from their row.
Is it UL certified?
Samebike's studio photographs of the VOYAGER carry a TÜV SÜD mark reading "C US" and "UL 2849". UL 2849, the standard UL Solutions certifies e-bikes to, examines the electrical drive train, battery and charger working together.
If a landlord, building manager or insurer asks for the certificate behind that mark, tell us before the bike ships and we will request it from Samebike.
Has it been recalled?
No. On October 2, 2026, the CPSC's recall database returned nothing for Samebike, Same bike, Samebikes, Sameway or Guangzhou Sameway across recall titles, product names and manufacturers, while known recalls from three other brands came back as controls.
Of the 623 bicycle, e-bike, battery and scooter recalls saved from the same database on September 25, one carries the word "Voyager": a 1998 recall of Sachs chains fitted to Diamondback mountain bikes, the Voyager I and Voyager II among them, another maker's bicycles.
The CPSC's site search, which carries its consumer warnings as well, answered "No Results." for Samebike and for Sameway the same evening, and its published warning listing names neither, while a brand with warnings on file came up in both.
Which class? Your state reads the 750 W figure
Samebike's US page assigns the VOYAGER no class, so the definition in your state's law settles it. Those definitions weigh the numbers Samebike publishes: 750 W with a 1500 W peak, 45 km/h (28.0 mph) on the specification table, stat strip and gallery image 25, and a throttle that drives the bike without pedaling.
At the federal level, 15 U.S.C. § 2085 places low-speed electric bicycles under the CPSC's bicycle rules, and its subsection (b) reads: "a two- or three-wheeled vehicle with fully operable pedals and an electric motor of less than 750 watts (1 h.p.), whose maximum speed on a paved level surface, when powered solely by such a motor while ridden by an operator who weighs 170 pounds, is less than 20 mph."
| What the definitions test | What Samebike publishes for the VOYAGER | Where Samebike prints it |
|---|---|---|
| Motor power | 750 W, 1500 W peak; one motor panel prints "1000W (Peak 1800W)" | the specification table, title and stat strip; the description; gallery image 25; the motor panel |
| Top speed | 45 km/h (28.0 mph); one motor panel prints "max 50KM/H" | the specification table and stat strip; gallery image 25; the motor panel |
| Throttle | a "Detachable throttle", and a "Pure Electric Mode" range in the manual | the specification table; gallery image 24; the manual's specification table |
Read October 2 and 3, 2026: 15 U.S.C. § 2085, Samebike's VOYAGER page and the Voyager XT manual.
If your state's wording hangs on watts or top speed, email us before ordering, and we will get the delivered bike's figures from Samebike in writing. The manual asks riders to "refer to the local laws and regulation" and to contact local or state authorities about the rules where they ride, and our 50-state e-bike law atlas sets out each state's definition.
Look up your state before the first ride on a public road. Its definition, in our atlas, will be applied to the figures above: 750 W rated, 1500 W at peak, 45 km/h on Samebike's table, and a throttle that moves the bike on its own.
Where you can ride it
A trail posted for class 1 e-bikes only is closed to the VOYAGER, because it has a throttle. Under 43 CFR 8340.0-5(j)(1), a class 1 motor "provides assistance only when the rider is pedaling"; beyond that, whoever manages the land writes the rule.
Bureau of Land Management rules at 43 CFR 8340.0-5 build their three classes around a motor "of not more than 750 watts (1 h.p.)", and whether e-bikes may use an area is for the authorized officer to decide in writing.
| Where you want to ride | Who sets the rule | The document to read |
|---|---|---|
| A street or bike lane | your state, then your city | the state's e-bike definition (our atlas) |
| A multi-use path or park trail | the park or trail agency | the class wording posted at the trailhead |
| BLM land | the field office | its e-bike decision; 43 CFR 8340.0-5 holds the definitions |
| A National Forest trail | the Ranger District | the motor vehicle use map (36 CFR 261.13) |
Four kinds of ground, four rulebooks, and each one reads its own sign before it reads a specification sheet.
National Forest trails follow the motor vehicle use map, and riding a trail the map closes to motor vehicles breaks a federal rule that carries a penalty.
36 CFR 261.2 counts as a motor vehicle "any vehicle which is self-propelled", and 36 CFR 261.1b punishes a breach of any Part 261 rule with "imprisonment of not more than six months", a fine under 18 U.S.C. 3571, or both; get the district's map before you ride.
Samebike sells the VOYAGER as a "City Electric Bike" with an "All-terrain" subtitle, and its description says the 20 × 4.0 tires handle sand and gravel as well as pavement. Our public-land guide lays out each federal land agency's e-bike rules.
Riding one trail network most weekends? Email its name to support@redtailebikes.com: we will go through its posted e-bike rules together, tell you whether throttle bikes are welcome, and ask Samebike for any figure the answer hinges on. The VOYAGER is $999 on our listing in four colors, Navy on this button and Black, White and Dark Green beside it, shipped free.
Buy the VOYAGER, $999Green flags / Red flags
Green flags
- $999 on our listing, matching Samebike's US store on October 3, 2026, where $1,499 appears as the regular price.
- The STORM's 960 Wh pack, $600 lower: the largest pack of the six Samebikes we sell at $999 or less, by each model's US specification table.
- A 750 W rear hub, 1500 W at peak, with "High 85+Nm Torque" on the US page.
- A computed 88 miles at 15 mph with easy pedaling for a 180 lb rider, and 56 on the throttle alone.
- Suspension front and rear: a fork and a coil rear shock with 30 mm of travel.
- Hydraulic discs on 180 mm rotors and eight Shimano gears, the only eight-speed Samebike we sell at $999 or less.
- A rack, fenders, a headlight, a taillight and a horn, all in the manual and on Samebike's panels.
- A step-through frame for riders 5'3" to 6'11", Samebike's own window, with a handlebar that rises 4.7 inches.
- Free shipping, and damage claims we file for you: delivery costs nothing in the contiguous United States, and transit damage reported within 48 hours becomes our claim with the carrier.
- About 18 cents a full charge, at July 2026's average US household electricity price.
Red flags
Each of these is about fit, and each sends you to a page or a bike that solves it.
- Wrong if it has to fold into a trunk or a closet. Samebike's table lists "Foldable: No"; the RS-A02 Pro folds in half on the same 20 × 4.0 tires, with a 720 Wh pack, for the same $999.
- Wrong if you carry it up stairs every day. At 87.1 lb it is a two-person lift; the LO26 Plus weighs 67.2 lb on Samebike's table and folds, also at $999.
- Wrong if you and your cargo weigh more than 265 lb. That is the manual's "Max Load"; the M20, also $999 on 20 × 4.0 tires with hydraulic discs, prints a 330 lb maximum load in its manual, and we will confirm the governing figure with Samebike before you buy.
- Wrong if you want bigger wheels around the same pack. The CREST puts 960 Wh, a 1000 W hub and 26 × 4.0 tires on a frame with no top tube, at $1,599.
- Wrong for trails posted class 1 only. A throttle bike is barred there; our public-land guide covers each federal agency's rule, and we will read your trail's sign with you.
- Wrong for a rider under your state's minimum age. Tell us the rider's age and state, and we will point you to the rule and to a bike we sell that suits it.
Buy it if / Buy something else if
Buy it if you want a step-through fat-tire bike with a big battery for the money: 960 Wh, a 750 W motor with a 1500 W peak, suspension at both ends, hydraulic brakes, eight gears, a rack, fenders and lights, for throttle riding and pedaling alike; you stand between 5'3" and 6'11", Samebike's window; and you have room to store it full length.
The VOYAGER's $999 buys the same 48 V 20 Ah pack Samebike puts in its $1,599 STORM and CREST, removable with a key, plus a fork and a coil shock, 180 mm hydraulic discs, a Shimano eight-speed, a throttle and five assist levels, an LCD, a horn, a headlight and a taillight, on 20 × 4.0 tires and a frame you step through.
Spreading the cost? Shop Pay on our VOYAGER listing showed four interest-free installments on October 3, 2026, with sample plans of $333.00 every two weeks for six weeks at 0% APR ($999 in total) or $90.17 a month for 12 months at 15% APR ($1,082.04 all told), either one after an eligibility check.
Buy something else if it has to fold, where the RS-A02 Pro does; if you carry it up stairs, where the LO26 Plus is lighter; if you need more than the manual's 265 lb of rider and cargo, where the M20 prints 330 lb; or if you want 26-inch wheels, where the CREST carries the same pack.
Our reviews of the STORM, the CREST, the M20, the M20-III, the RS-A08 II, the RS-A02 Plus, the RS-A02 Pro, the LO26 Plus, the CY20 Pro and the CY20 Pro Spoked Wheel work from the same two models, so their tables line up with these.
For the whole range, our Samebike brand profile sets the models we carry side by side, and the e-bike reviews hub arranges every brand's bikes by riding style, rider and budget.
Before you buy: the checklist
Run down these eight before paying $999; numbers 1 to 3 decide whether the VOYAGER fits you and the places you plan to ride.
- Measure your barefoot inseam and read your height's row in the saddle table.
- Check your state's e-bike definition and minimum age in our atlas, along with the class signs on the paths you mean to use.
- Price your usual ride in watt-hours with the range tables, keeping a quarter of the 960 in reserve.
- Measure the storage spot for 67.7 inches of length and up to 49.2 inches of height; the frame does not fold.
- Line up a second person for delivery: the carton weighs 98 lb.
- Keep rider and cargo at or under 265 lb, the manual's "Max Load", and write to us if you are near it.
- Plan where it charges: 6 to 8 hours per full charge, with the pack charged and stored between 32 and 104 °F.
- Check with your home or renter's insurer whether an e-bike is covered, as the manual itself suggests.
Buying it from us
Why buy the VOYAGER from Redtail
Ordering the VOYAGER from us costs the same $999 that Samebike's US store listed on October 3, 2026, in all four colors, and adds the following.
| What you get | The detail |
|---|---|
| Price | $999 in Black, White, Navy or Dark Green, the price Samebike listed on October 3, 2026, with $1,499 shown as its regular price |
| Shipping | Free within the contiguous United States: orders leave within 1–3 business days and most e-bikes arrive 5–10 business days later. For Alaska, Hawaii, US territories, P.O. boxes and remote areas, contact us first |
| Paying over time | Shop Pay: four interest-free installments, or sample plans of $333.00 every two weeks for six weeks at 0% APR ($999 in total) or $90.17 a month for 12 months at 15% APR ($1,082.04 in total), subject to an eligibility check through Affirm's lending partners; read October 3, 2026 |
| If it arrives damaged | Note it with the driver and email us photos within 48 hours; we file the freight claim and arrange the repair or replacement |
| A range answer first | Send your usual distance, climbing and speed, and we will run your ride through the range model before you pay |
| Parts later | Email the part and your order number, and we will confirm it fits your VOYAGER before you buy it |
| If something fails | Send photos or video with your order number and we take the claim to Samebike for you. Samebike's warranty policy lists 3 years on the frame and 1 year on "batteries, motors and other accessories", with a prorated credit toward a new battery after the first year |
Change of heart after delivery? Our refund policy needs the box unopened and factory-sealed and your request within 72 hours, and charges a 15% restocking fee plus return shipping; canceling an order costs 3%. Fit and route questions cost nothing, so ask them before you order.
Navy, Black, White or Dark Green at $999, shipped free, and if anything fails under warranty we take the claim to Samebike for you. Shop Pay offers four interest-free installments to buyers who qualify.
Buy the VOYAGER for $999Frequently asked questions
How far can the Samebike VOYAGER go on one charge?
About 56 miles at 15 mph on the throttle for a 180 lb rider on level pavement, computed from a full pack. Pedal easily and you stretch that to about 88; ride 20 mph on the throttle and you get about 39; hold a 4% climb at 10 mph and it falls to about 20. Samebike's specification table lists 160 km (99 miles) as its maximum, and the range tables adjust every figure for your weight, climbing and temperature.
What is the top speed of the Samebike VOYAGER?
45 km/h (28.0 mph), on Samebike's specification table, stat strip and gallery image 25; one motor panel on the same page prints "max 50KM/H", and the manual's specification page lists no top speed. If your state's rule turns on top speed, email us and you will have Samebike's written figure for the bike you would receive.
Which Voyager e-bike is this?
Samebike's VOYAGER, sold on its US store: a 20-inch fat-tire step-through with one 750 W rear hub, a 48 V 20 Ah (960 Wh) pack, a rear rack and fenders. Its manual names the model Voyager XT, and its US SKUs, on the product record, begin VOYAGER-XT-FT and end in -US.
Samebike's European VOYAGER lists a "48V 15Ah" pack and "80+Nm", so check those figures when you compare bikes that share the name.
Does the Samebike VOYAGER have dual motors?
No, one. A line on Samebike's page calls it a "dual-motor eBike", but its specification table lists a single 750 W motor (1500 W peak) and the manual's overall view labels one motor, at the rear wheel. If you want two motors, Samebike's M20-III puts a 1000 W hub in each wheel.
Does the VOYAGER fold?
No. Samebike's specification table lists "Foldable: No"; the handlebar stem has a buckle the manual calls a folding clasp, which sets the bar's height, but the frame stays in one piece. If it must fold, the RS-A02 Pro does, on the same 20 × 4.0 tires and at the same $999.
Is the VOYAGER street legal, and what class is it?
Your state decides, since Samebike gives the VOYAGER no class. The wording you will meet turns on motor power, top speed and whether the throttle moves the bike without pedaling, and for the VOYAGER those read 750 W with a 1500 W peak, 45 km/h on the specification table, and yes. You can find your state's wording in our 50-state atlas, and the class section quotes the federal definition in full.
How much does the Samebike VOYAGER weigh?
87.1 lb (39.5 kg) on Samebike's specification table and drawing, and 87 lb in the manual, where the carton weighs 98 lb. You will want two people for the box and for any lift onto a rack.
What is the VOYAGER's weight limit?
Samebike prints two figures, and you should plan on the lower one: a 150 kg (330.7 lb) payload on its specification table, stat strip and drawing, and "Max Load 265 lbs (120kg)" in the manual's specification table. If you and your cargo come to more than 265 lb, email us and we will get Samebike's answer before you order.
How much torque does the VOYAGER have?
"High 85+Nm Torque", on Samebike's US page, where gallery image 25 also prints "85 Nm Motor Torque". Samebike's European VOYAGER page prints "80+Nm" for its own model; the range model holds the motor to 85 N·m, the bottom of the US figure, so your hill figures lean conservative.
What battery does the VOYAGER use, and can you remove it?
A single removable 48 V 20 Ah pack of 960 Wh, which Samebike's range panel calls an "LG battery with smart BMS".
You take it out with its key: turn it until the pack pops out, rotate the retaining clip, then press the top and pull, per the manual. Samebike's warranty policy repairs or replaces a battery that fails in its first year and afterward gives a prorated credit toward a new one; for a spare, email us your order number.
How long does the VOYAGER take to charge?
6 to 8 hours, on Samebike's specification table and charging panel and in the manual; the charger's printed 3 A fills the 20 Ah pack in about 6.7 hours by simple division. Plug it in when you get home and it is ready by morning, charging between 32 and 104 °F.
What does a full charge of the VOYAGER cost?
About 18 cents: 960 Wh priced at 18.31 cents per kilowatt-hour, the national household average for July 2026 in data from the U.S. Energy Information Administration, with the charger's own losses on top. At 15 mph on the throttle you use 17.1 Wh a mile, about a third of a cent, and a full charge runs from about 12 cents in Louisiana to about 46 in Hawaii.
Does the VOYAGER fit tall riders?
Yes, inside Samebike's window, which runs to 6'11" on its size-and-fit drawing. At 6'2", the median barefoot inseam is 36.0 inches and the formula puts the saddle top 39.3 inches from the pedal; at 6'4", 41.0 inches.
The saddle is listed at up to 37.8 inches off the ground, so a tall rider should measure from the saddle top to the pedal on the bike, as the saddle table explains, before relying on the top of the range.
Is the VOYAGER a good step-through for older riders?
Its frame is what answers that: there is no top tube, so you step through the low point of the frame instead of swinging a leg over, and the bar rises 4.7 inches for a more upright seat.
Two things to weigh are the roughly 87 lb you will sometimes push or turn by hand, and the manual's push-only "Boost mode", which helps you walk it. If balance or joints are the question, a clinician's advice comes first.
Does the Samebike VOYAGER have a throttle?
Yes: the specification table lists a "Detachable throttle", gallery image 24 labels it at the left grip, and you also get five pedal-assist levels. The range tables show what the throttle, or pedaling alongside it, does to your miles.
Can you ride the VOYAGER in the rain or snow?
Samebike's FAQ says its bikes "are designed to handle wet conditions" but asks you to avoid heavy rain, which "may affect battery life and reduce traction", and rates the entire bike IP64, while gallery image 23 prints IP54 and the manual IP34.
The product description lists snow among the surfaces the tires handle, and the manual says the bike is not intended to be used or stored below 32 °F; ride with care, and dry it indoors afterward, as the manual asks.
Does the VOYAGER have full suspension?
It has suspension at both ends: a "Dual-shock front fork" and a rear shock Samebike lists with "Suspension Travel 30mm", per Samebike's US page, whose stat strip reads "Fork&Shock". The suspension section pictures the fork and places the shock.
Where do I find the VOYAGER manual?
The product page's FAQ links the Voyager XT manual, a 12-page PDF. In it you will find the specifications, assembly, battery removal and charging, the display and its error codes, and the warranty.
Can I pay for the VOYAGER in installments?
Yes. On October 3, 2026 our listing's Shop Pay showed four interest-free installments, with sample plans of $333.00 every two weeks for six weeks at 0% APR ($999 in total) and $90.17 a month for 12 months at 15% APR ($1,082.04 in total); your approval depends on an eligibility check by Affirm's lending partners.
Is Samebike a legit brand?
The VOYAGER manual's back page names Guangzhou Sameway Electric Bicycle Co., Ltd., at a factory address in Guangzhou, for after-sales questions. On October 2, 2026 neither the CPSC's recall database nor its site search listed a recall or warning for Samebike, and every figure you read here traces to Samebike's US store and its manual.
Limitations of this review
What this review cannot settle on its own, numbered, with what would settle it where that is known.
- We sell this bike. Weigh the red flags as heavily as the green ones.
- The review is specification-verified: each figure traces to Samebike's published documents, a federal text, our store record, a study cited in the range or fit sections, or arithmetic set out here.
- Each range number describes one steady ride: one speed on one grade in still air. Real stops, starts and headwinds cost more, and a tailwind less.
- Bafang's published motor stands in for Samebike's. Samebike's documents give no maker, unloaded speed or efficiency curve for the VOYAGER's motor, so the model builds it on the shape of Bafang's RM G0H0 at 48 V and 750 W, unloaded at 28.0 mph. Raising the efficiency from 80% to 82% lifts the 15 mph throttle figure from 56 miles to 60.
- No measured ride checks the whole chain. Three parts are checked separately (the physics against Martin and colleagues' worked example, the motor against Bafang's rated 80%, and the whole model against the manual's 43 to 46 pure-electric miles, which a steady 17.8 to 18.8 mph on the throttle reproduces); only a VOYAGER ridden until its pack ran out, with speed, load and weather recorded, would check it end to end.
- The model holds the motor to its 750 W rating. No Samebike document says how long the motor can hold its 1500 W peak, so the hill table stops at 12%, where holding 10 mph still fits inside 750 W; the torque ceiling, the low end of "85+Nm", does not bind on any row printed here.
- The model assumes the full 960 Wh. The documents read here do not say how much of the pack the battery management system releases; the 25% reserve comes from one measured pedelec that released 75% in a standard test (researchers at KIT).
- The tire and wheel figures are borrowed. Rolling resistance is the median of ten 26 × 4.00 tires Bicycle Rolling Resistance measured at 12 psi, bracketed in the tire table, and the VOYAGER's 20 × 4.0 tires are not among them. The VOYAGER's pages print no wheel diameter, so the 22.8-inch wheel is the "Tire Width 22.8"" Samebike draws across the whole wheel on its M20-III, M20 and RS-A02 Plus size charts for the same 20 × 4.0 tire; the tire circles on the VOYAGER's drawing read 23.1 inches, 1.2 percent more.
- One cell's laboratory data carries the cold figures. Samebike's range panel names an "LG battery" but no cell model, so the central line follows McMaster University's LG HG2 data with the cells at air temperature, and other published cells set the brackets.
- The cold table stops at 32 °F because the manual says the bike "is not intended to be used and storage at ambient temperatures less than 0 °C (32 °F)" and sets the battery's charging and storage range at 32 to 104 °F.
- The fit section prints a formula, not a fit. Samebike publishes no bracket height, crank length, seat angle, standover or grip position for the VOYAGER, so the saddle table gives a distance from the pedal and the cockpit and hand subsections compute no lean or hand load.
- The drawing did not validate as a measuring source. At its published wheelbase it reproduced one of Samebike's printed dimensions within 3.5%, the total length; both seat heights and both total heights missed by 5.5 to 15.4%, read to the clamp, the saddle top or the grip, so no grip position is taken from it.
- The saddle range is measured to the ground. Samebike lists 810 to 960 mm off the ground and no pedal height, so the saddle-to-pedal distance on your bike is shorter than the listed figure by an amount only a tape measure gives; the heel check in the setup subsection confirms the setting.
- The riders are soldiers. All 6,068 bodies were measured for the Army's 2012 ANSUR II survey, which holds 17 riders at 6'5", 6 at 6'6" and none from 6'7" up, so Samebike's window above 6'4" lies beyond what it can model and the tables stop at 6'4".
- Which load figure governs is open. The specification table prints a 150 kg payload and the manual a 265 lb "Max Load"; this review plans on 265 until Samebike answers.
- Samebike's documents give two or more values for several things. Each set is in the table below the list, and if you email us we will ask Samebike which figure holds for the bike you order.
- Certification. Samebike's studio photographs carry a TÜV SÜD mark reading "C US" and "UL 2849"; no certificate number appears on the US page, the product record or the manual. TÜV SÜD's public Certificate Explorer, searched October 2, 2026, lists eight Sameway attestations to the European standard EN 15194 for other Samebike models and none for the VOYAGER; it returned no North American UL 2849 listing for any brand tried, so it could not confirm or rule out the VOYAGER's mark.
- The European VOYAGER is a different specification. Samebike's European store lists its VOYAGER with a 48 V 15 Ah pack and "80+Nm" under -EU SKUs; nothing on this page is taken from it except where it is named.
- The recall search reads the CPSC's US record for the names listed, so a recall filed under a different company name would not appear.
- Price and stock change. We read both on our listing and on Samebike's US store on October 3, 2026.
- The charge cost uses one month's national average. EIA marks its July 2026 residential figure of 18.31 cents per kWh as preliminary, your own utility charges its own rate, and the charger's losses, which no document read here states, come on top.
| What | One Samebike document | Another |
|---|---|---|
| Motor | 750 W, 1500 W peak: specification table, title, stat strip, description, gallery image 25 | "1000W (Peak 1800W)" and "max 50KM/H", one motor panel |
| Motor count | one, at the rear wheel: specification table, the manual's overall view | "dual-motor eBike", the "What is VOYAGER" line |
| Load | 150 kg: specification table, stat strip, drawing | "Max Load 265 lbs (120kg)", the manual's specification table |
| Range | 160 km, specification table; 70–160 km, stat strip; up to 93 miles, range panel; over 100 km in mild electric mode, battery panel; 70–90 miles, gallery image 23 | 87–99 miles (140–160 km) pedal assist and 43–46 miles (50–55 km) pure electric, manual |
| Size | 172 × 63 × 113–125 cm, specification table | 1730 × 620 × 1210 mm, manual |
| Water resistance | IP64 for the entire bike, the page's FAQ | IP54, gallery image 23; IP34, manual |
| USB | "USB Charger: No", specification table | "convenient USB ports for charging your devices", the smart-riding panel |
| Battery location | "seat-integrated", the battery panel | inside the down tube, gallery image 23 and the studio photographs |
| Warranty | 3 years frame, 1 year batteries, motors and other accessories: warranty policy | "12 Months Warranty", the product page's policy block |
Samebike's own wording for each set, read October 2 and 3, 2026; wherever the review had to choose, it used the first column, except the load, where it plans on the lower figure.
The bottom line
For $999, the VOYAGER puts a 750 W rear hub with a 1500 W peak and "High 85+Nm Torque", a removable 960 Wh pack, hydraulic discs, a fork and a rear shock, 20 × 4.0 tires, eight Shimano gears, a throttle, lights, a horn, a rack and fenders on a frame you step through.
A 180 lb rider gets about 56 level miles at 15 mph on the throttle, or 88 with easy pedaling, and a full charge costs about 18 cents at the national average. With 750 W rated, 45 km/h on the specification table and no class from Samebike, your state decides where it may go.
Samebike sizes it for riders from 5'3" to 6'11", and the step-through frame lets every one of them mount and stop without lifting a leg over a tube; the saddle table gives your saddle distance from your inseam. Shop Pay on our listing offers four interest-free installments for buyers who qualify.
Send us your height, barefoot inseam and usual ride before you order. We will tell you where the saddle should sit, how the ride prices out in watt-hours of the 960, and how the trails you name treat a throttle bike.
One price in four colors: the VOYAGER at $999 in Black, White, Navy or Dark Green. Shipping in the lower 48 is free, Shop Pay offers four interest-free installments to qualifying buyers, and if the bike arrives damaged, the carrier claim is ours to file.
Buy the Navy VOYAGERSource register
The tier beside each source names the authority behind it: T1 is law, regulation or government data, T2 is an organization's own publication about its products, terms or measurements, and T3 is peer-reviewed research or a standards body.
| Source | Tier | What it supports | Date read |
|---|---|---|---|
| Samebike, VOYAGER product page · product record | T2 | Every specification row, the title line, the stat strip, the feature panels, the size chart and drawing, the gallery's panels, the price, the range figures, the FAQ | Oct 2–3, 2026 |
| Samebike, Voyager XT manual | T2 | Weight, load, charger, range by mode, climbing angle, frame material, IP rating, the box, the overall view, assembly, battery removal, charging, the display, boost mode, horn, temperatures, braking order, the local-law line, the maker's name and address | Oct 2, 2026 |
| Samebike, warranty policy · M20-III product page | T2 | Warranty terms; the wheel diameter the range model borrows | Oct 2, 2026 |
| Samebike EU, VOYAGER product page | T2 | The European VOYAGER's pack, torque, price and SKUs | Oct 2, 2026 |
| 15 U.S.C. § 2085 | T1 | The federal low-speed electric bicycle definition, quoted | Sep 26, 2026 |
| 43 CFR 8340.0-5 · 36 CFR 261.13 · 36 CFR 261.2 · 36 CFR 261.1b | T1 | BLM and Forest Service e-bike rules; the Forest Service's motor vehicle definition and the penalty for breaking its rules | Sep 26, 2026 |
| CPSC recall database · CPSC site search · CPSC warning listing | T1 | The recall and warning searches and their controls | Oct 2, 2026 |
| EIA Electric Power Monthly, Table 5.6.A | T1 | The average residential electricity price behind the charge cost | Oct 2, 2026 |
| Redtail eBikes listing · shipping policy · refund policy · terms of service | T2 | Price, stock, Shop Pay terms, shipping, the damage window and claim, change-of-mind terms | Oct 3, 2026 |
| Affirm's lending partners | T2 | The lenders behind Shop Pay Installments | Sep 28, 2026 |
| TÜV SÜD Certificate Explorer | T2 | The Sameway attestations it lists and the searches behind Limitations item 17 | Oct 2, 2026 |
| Bafang workbook 2021 | T2 | The comparable hub motor's speeds, rating and efficiency floor | Sep 23, 2026 |
| Bicycle Rolling Resistance, fat tires · Kenda Juggernaut Pro · temperature test | T2 | Fat-tire rolling resistance, and its change with temperature | Sep 23–25, 2026 |
| Redtail eBikes range model · fit model | T2 | Every computed range and fit figure on this page | Oct 2, 2026 |
| U.S. Standard Atmosphere, 1976 · US Army ANSUR II | T1 | Air density; the 6,068 rider bodies | Sep 23–26, 2026 |
| UL Solutions, UL 2849 | T3 | What UL 2849 certification examines | Sep 26, 2026 |
| Martin et al., 1998 · Rothhämel, 2023 · Tengattini and Bigazzi, 2018 · Arango, Lopez and Ceren, 2021 · Schmitt, Decker and Doppelbauer, 2019 · McMaster HG2 data | T3 | The cycling-power model and chain efficiency; rolling resistance in the cold; drag areas; battery efficiency; usable pack energy; cell energy by temperature | Sep 23–26, 2026 |
| Peveler et al., 2005 · Ferrer-Roca et al., 2012 · Peveler et al., 2007 · Carahalios, 2015 · Slane et al., 2011 · Priego Quesada et al., 2017 | T3 | The saddle formulas and knee angle; hand load and posture | Sep 25–26, 2026 |
Expiry conditions
Any of these would date the page: a new price, specification, range figure, drawing or size chart on Samebike's US VOYAGER page; a revised Voyager XT manual; Samebike's written answer on the load figure, the USB port, a certificate, or the delivered bike's speed and power; new price, stock or Shop Pay terms on our listing; or a newer month of EIA residential electricity prices, due October 23, 2026.
So would a change at the federal level: an amendment to 15 U.S.C. § 2085, a class Samebike assigns the VOYAGER, or a CPSC recall or warning naming Samebike or Sameway. Verified October 3, 2026.
References
Each document cited on this page, with its publisher, title, the part relied on and the date it was retrieved; the two computations of this review are listed last, with the sections that set them out.
- SAMEBIKE US (Guangzhou Sameway Electric Bicycle Co., Ltd.), VOYAGER Large Battery Fat Tire Powerful Peak 1500W City Electric Bike — product page (Specifications table; title line; stat strip; feature panels; Size Chart and size-and-fit drawing; gallery; FAQ; policy block). Retrieved October 3, 2026. https://us.samebike.com/products/voyager-large-battery-fat-tire-powerful-peak-1500w-city-electric-bike
- SAMEBIKE US (Shopify product record), VOYAGER — product record (.json) (variants[].price, compare_at_price, sku; images[]; created_at; body_html). Retrieved October 3, 2026. https://us.samebike.com/products/voyager-large-battery-fat-tire-powerful-peak-1500w-city-electric-bike.json
- Guangzhou Sameway Electric Bicycle Co., Ltd. (SAMEBIKE), Product Instruction Manual, Model: Voyager XT (1 Instructions pertaining to a risk of fire; 2 Unpacking and specs; 3 Product components; 4.1-4.7 Method of assembly; 5.1-5.2 Display and Controller Operation; 6 Preparation before riding; 7 User maintenance; 8 Warranty policy; back page). Retrieved October 2, 2026. https://cdn.shopify.com/s/files/1/0684/9173/9372/files/Voyager_XT_manual.pdf?v=1789631399
- SAMEBIKE US, Warranty Policy ('Frame warranty for 3 years, batteries, motors and other accessories warranty for 1 year'; 'Batteries'). Retrieved October 2, 2026. https://us.samebike.com/pages/warranty-policy
- SAMEBIKE US, M20-III Off Road Peak 3000W Fat Tire Electric Bike — product page (Size and Fit: 'Tire Width 22.8"'). Retrieved October 2, 2026. https://us.samebike.com/products/m20-iii-off-road-peak-3000w-fat-tire-electric-bike
- SAMEBIKE EU, SAMEBIKE VOYAGER 20*4.0" Long Range Off Road E-Bike | SAMEBIKE EU (title line; stat strip; battery panel; variants and SKUs). Retrieved October 2, 2026. https://samebike.com/products/voyager-all-terrain-fat-tire-e-bike
- US Government Publishing Office, 15 U.S.C. § 2085 — Low-speed electric bicycles (subsections (a) and (b)). Retrieved September 26, 2026. https://www.govinfo.gov/content/pkg/USCODE-2024-title15/html/USCODE-2024-title15-chap47-sec2085.htm
- Bureau of Land Management, Department of the Interior, 43 CFR Part 8340 — Off-Road Vehicles, § 8340.0-5 (§ 8340.0-5(a)(5)(iii) and (j)(1)). Retrieved September 26, 2026. https://www.ecfr.gov/current/title-43/subtitle-B/chapter-II/subchapter-H/part-8340
- Forest Service, Department of Agriculture, 36 CFR Part 261 — Prohibitions (§ 261.13). Retrieved September 26, 2026. https://www.ecfr.gov/current/title-36/chapter-II/subchapter-B/part-261/subpart-A/section-261.13
- U.S. Department of Agriculture, Forest Service (Office of the Federal Register, eCFR), 36 CFR 261.2 Definitions (§ 261.2, 'Motor vehicle'). Retrieved September 26, 2026. https://www.ecfr.gov/current/title-36/chapter-II/part-261/subpart-A/section-261.2
- U.S. Department of Agriculture, Forest Service (Office of the Federal Register, eCFR), 36 CFR 261.1b Penalty (§ 261.1b). Retrieved September 26, 2026. https://www.ecfr.gov/current/title-36/chapter-II/part-261/subpart-A/section-261.1b
- US Consumer Product Safety Commission, CPSC Recall REST service, saferproducts.gov (RecallTitle, ProductName and Manufacturer queries; 623-record corpus). Retrieved October 2, 2026. https://www.saferproducts.gov/
- US Consumer Product Safety Commission, cpsc.gov site search (queries Samebike and Sameway, with a known-positive control). Retrieved October 2, 2026. https://www.cpsc.gov/search?search_api_fulltext=Samebike
- US Consumer Product Safety Commission, Product safety warning listing (CSV) (every row and column, read on word boundaries; a known-positive control). Retrieved October 2, 2026. https://www.cpsc.gov/s3fs-public/recall-data/product_safety_warning_listing.csv
- U.S. Energy Information Administration, Electric Power Monthly, Table 5.6.A: Average Price of Electricity to Ultimate Customers by End-Use Sector, by State, July 2026 and 2025 (Residential, July 2026 column: U.S. Total, Louisiana, Hawaii). Retrieved October 2, 2026. https://www.eia.gov/electricity/monthly/epm_table_grapher.php?t=epmt_5_6_a
- Redtail eBikes, Samebike VOYAGER Fat Tire City Electric Bike — product listing (price, variants, Shop Pay installments block). Retrieved October 3, 2026. https://redtailebikes.com/products/samebike-voyager
- Redtail eBikes, Shipping policy (Processing & delivery; Receiving & damage claims; Where we ship). Retrieved October 3, 2026. https://redtailebikes.com/policies/shipping-policy
- Redtail eBikes, Refund policy (Change-of-mind returns; Order cancellations). Retrieved October 3, 2026. https://redtailebikes.com/policies/refund-policy
- Redtail eBikes, Terms of service (delivery inspection paragraph). Retrieved October 3, 2026. https://redtailebikes.com/policies/terms-of-service
- Affirm, Inc., Affirm's lending partners (lending partners page). Retrieved September 28, 2026. https://www.affirm.com/lenders
- TUV SUD, Certificate Explorer (API /api/v1/certifications: SearchText and CertificateHolder Sameway; Model VOYAGER; controls). Retrieved October 2, 2026. https://www.tuvsud.com/en-us/customer-hub/ps-cert
- BAFANG, BAFANG Workbook OEM 2021 (PDF p.23, MOTORS table, H640 column (RM G0H0.750.DC / RM G0H0.1000.DC)). Retrieved September 23, 2026. https://www.bafang-e.com/Uploaded/Labels/BAFANG%20Workbook%20OEM%202021.pdf
- Bicycle Rolling Resistance (Jarno Bierman), Fat Bike Tires Test Results ('Rolling Resistance 12 psi (default)' column, the 26 x 4.00 rows). Retrieved September 25, 2026. https://www.bicyclerollingresistance.com/fat-bike-reviews
- Bicycle Rolling Resistance (Jarno Bierman), Kenda Juggernaut Pro 2016 (Rolling Resistance Test Results). Retrieved September 25, 2026. https://www.bicyclerollingresistance.com/fat-bike-reviews/kenda-juggernaut-pro-2016
- CRR at Different Temperatures: Examining Temperature Dependence of Rolling Resistance. Bicycle Rolling Resistance (Jarno Bierman), results paragraph. Retrieved September 23, 2026. https://www.bicyclerollingresistance.com/specials/crr-temperature-test
- U.S. Standard Atmosphere, 1976 (NOAA-S/T 76-1562). NOAA, NASA, US Air Force, Table 3 (composition); sea-level values (1976-10). Retrieved September 23, 2026. https://ntrs.nasa.gov/api/citations/19770009539/downloads/19770009539.pdf
- 2012 Anthropometric Survey of U.S. Army Personnel (ANSUR II), public data release 2017. U.S. Army Natick Soldier Research, Development and Engineering Center, public data files (male 4,082 rows, female 1,986 rows); TR15-007 tables (2017). Retrieved September 26, 2026. https://www.army.mil/article/188601/for_good_measure_natick_releases_raw_data_from_army_wide_anthropometric_survey
- UL Solutions, E-Bikes Certification: Evaluating and Testing to UL 2849 (service summary). Retrieved September 26, 2026. https://www.ul.com/services/e-bikes-certificationevaluating-and-testing-ul-2849
- Martin JC, Milliken DL, Cobb JE, McFadden KL, Coggan AR. Validation of a Mathematical Model for Road Cycling Power. Journal of Applied Biomechanics (Human Kinetics), 14(3):276-291, Eq. 14 and Appendix I; 'chain drive system (Ec) was 97.698' (1998-08-01). Retrieved September 23, 2026. https://collections.lib.utah.edu/dl_files/b4/8e/b48ef26086091662c561e673d7bd990d77868437.pdf
- Rothhamel M. On rolling resistance of bicycle tyres with ambient temperature in focus. International Journal of Vehicle Systems Modelling and Testing (Inderscience), volume 17, pages 67 to 80; Table 1 and Table 4 (2023). Retrieved September 23, 2026. https://www.inderscience.com/filter.php?aid=132317
- Tengattini S, Bigazzi AY. Physical characteristics and resistance parameters of typical urban cyclists. Journal of Sports Sciences (Taylor & Francis), 36(20):2383-2391, Table 4 (2018). Retrieved September 23, 2026. https://civil-reactlab.sites.olt.ubc.ca/files/2022/11/Tengattini_2018_Physical-characteristics-and-resistance-parameters-of-typical-urban-cyclists.pdf
- Arango I, Lopez C, Ceren A. Improving the Autonomy of a Mid-Drive Motor Electric Bicycle Based on System Efficiency Maps. World Electric Vehicle Journal (MDPI), 12(2):59, Eq. (40) (2021). Retrieved September 23, 2026. https://mdpi-res.com/d_attachment/wevj/wevj-12-00059/article_deploy/wevj-12-00059.pdf
- Schmitt M, Decker S, Doppelbauer M. Measuring and Characterization of a Pedal Electric Cycle (Pedelec) on a Full System Test-Bench. IEEE / EPE'19 ECCE Europe (Karlsruhe Institute of Technology authors), 'Distance' section and Fig. 7 (2019). Retrieved September 26, 2026. https://publikationen.bibliothek.kit.edu/1000100371/50695920
- LG 18650HG2 Li-ion Battery Data. McMaster University (Kollmeyer et al.), Mendeley Data, raw cycler files Dis_0p5C at -20, -10, 0, 10, 25, 40 C, recomputed (2020). Retrieved September 23, 2026. https://doi.org/10.17632/b5mj79w5w9.2
- Peveler W, Bishop P, Smith J, Richardson M, Whitehorn E. Comparing Methods For Setting Saddle Height In Trained Cyclists. JEPonline 8(1):51-55. Journal of Exercise Physiology Online (American Society of Exercise Physiologists), Methods (the Hamley and LeMond paragraph); Results (the 25-35 degree accuracies, n=19) (2005-02). Retrieved September 26, 2026. https://www.asep.org/asep/asep/JEPonlineFEBRUARY2005_PevelerSaddle.doc
- Ferrer-Roca V, Roig A, Galilea P, Garcia-Lopez J. Influence of saddle height on lower limb kinematics in well-trained cyclists: static vs. dynamic evaluation in bike fitting. J Strength Cond Res 26(11):3025-9; doi 10.1519/JSC.0b013e318245c09d. Journal of Strength and Conditioning Research (NSCA), abstract (2012-11). Retrieved September 25, 2026. https://pubmed.ncbi.nlm.nih.gov/22190163/
- Peveler, Pounders & Bishop, Effects of saddle height on anaerobic power production in cycling, JSCR 21(4):1023-7. Journal of Strength and Conditioning Research (NSCA), abstract, first sentences (2007-11). Retrieved September 25, 2026. https://pubmed.ncbi.nlm.nih.gov/18076230/
- Carahalios A. An Analysis of the Bicycle-Rider Interface Forces in Stationary Road Cycling (MS thesis, Department of Integrative Physiology, University of Colorado). University of Colorado Boulder (MS thesis), abstract: baseline 2 W/kg, 90 rpm, hoods; 10 USAC Category 3 or better riders (2015). Retrieved September 25, 2026. https://scholar.colorado.edu/downloads/70795789x
- Slane J, Timmerman M, Ploeg HL, Thelen DG. The influence of glove and hand position on pressure over the ulnar nerve during cycling. Clin Biomech 26(6):642-8; doi 10.1016/j.clinbiomech.2011.03.003. Clinical Biomechanics (Elsevier), abstract (2011-07). Retrieved September 25, 2026. https://pubmed.ncbi.nlm.nih.gov/21458120/
- Priego Quesada JI, Perez-Soriano P, Lucas-Cuevas AG, Salvador Palmer R, Cibrian Ortiz de Anda RM. Effect of bike-fit in the perception of comfort, fatigue and pain. J Sports Sci 35(14):1459-65; doi 10.1080/02640414.2016.1215496. Journal of Sports Sciences (Taylor & Francis), abstract (2017). Retrieved September 25, 2026. https://pubmed.ncbi.nlm.nih.gov/27490817/
- Redtail eBikes, VOYAGER range model, the computation set out in the range section of this review, every input and its source in its inputs table; run October 2, 2026. https://redtailebikes.com/blogs/journal/samebike-voyager-review#range
- Redtail eBikes, VOYAGER fit model, the computation set out in the fit section of this review, every input and its source in its inputs table; run October 2, 2026. https://redtailebikes.com/blogs/journal/samebike-voyager-review#fit






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