
$1,549 · one rear hub motor: 1,000 W rated, 2,000 W peak, 100 N·m · a 52 V 60 Ah pack of 3,120 Wh · Tesway's range 170–200 miles · ships at 16 mph, 32 mph published · 106 or 110 lb, 350 lb payload · step-over frame · verified September 26, 2026
Quick Answer — The X7 PRO is Tesway's one-motor X7: a rear hub motor rated at 1,000 W under the same 3,120 Wh pack as the two-motor X7 AWD, for $1,549. Carrying a 180 lb rider at the 16 mph it is set to from the box, on the throttle over level pavement, one charge computes to about 162 miles.
Pedal lightly at that same 16 mph and the figure grows to 233 miles; hold 20 mph on the throttle and it shrinks to 124. Tesway's specification prints 170 miles on motor power alone and 200 with pedal assist, and the range tables turn both into your own ride.
Tesway rates the motor at 1,000 W and publishes 32 mph, figures past the 750 W and 20 mph lines in the federal and California e-bike definitions. Its page also says the bike's "Factory-locked mode complies with 250W and 25 km/h limits", and the class section sets both statements beside the law.
Black and Blue were both orderable on our store on September 26, 2026 at $1,549, against a regular price of $2,399: Black here, or Blue. Shipping is free inside the contiguous United States, and the X5/X7 PRO Free Value Pack, which Tesway describes as a rear seat set and lists at $251.94, comes with an order placed here.
Buy the X7 PRO in BlackWhat this review covers
The specification · What it is · Fit · The motor · The battery · Range · Brakes and lights · Suspension and tires · Weight and the rear seat · The Mercer fit test · UL · Recalls · Class · Trails · Green and red flags · The verdict · Checklist · Buying it from us · FAQ · Limitations · The bottom line · References
How we verified this Tesway X7 PRO review
Every figure below was read on September 26, 2026, from Tesway's X7 PRO product page, its product record, the manual Tesway publishes for the X5 and X7 PRO, the dimension drawing on that page, our own listing and the statutes quoted in the class section. Range and fit are computed, and each section's formula lists what goes into it.
This is a specification-verified review: each number traces to Tesway, to a statute or to arithmetic shown on the page, and the range model reproduces its published benchmarks before it computes anything. We sell the X7 PRO, so weigh the red flags as heavily as the green ones.
Written by Milad Ghobadibeygvand, BScN (Western University, 2014). Corrections: support@redtailebikes.com.
The X7 PRO on paper: Tesway's specification
| As Tesway publishes it | |
|---|---|
| Frame | aluminum alloy, non-foldable, step-over |
| Motor | one hub motor, in the rear wheel: "52V 1000W", "Peak 52V 2000W" |
| Torque | 100 N·m |
| Battery | 52 V 60 Ah, 28 lb on its own |
| Range | 200 miles on pedal assist; 170 miles "Pure Electric Range" |
| Top speed, published | 32 mph |
| Speed as delivered | "Default Speed -16mph" |
| Pedal assist | five levels, and 0 for none |
| Throttle | half-twist, with cruise control |
| Walk assist | a push mode held on the minus key |
| Charger | 58.8 V 5 A |
| Charge time | "About 10 hours" on the product page; 6 hours from empty in the manual |
| Brakes | four-piston hydraulic at both wheels, rotors listed at 230 mm × 2.3 mm |
| Fork | "Front Hydraulic Fork", 120 mm of travel with a hydraulic lockout |
| Rear suspension | "Rear Spring Suspension", a coil shock |
| Tires | 20 × 4.0 Kenda fat tires with reflective strips |
| Gears | Shimano 7-speed; a 52T chainring with a double guard |
| Handlebar | one-piece riser, "Non-Folding BMX Handlebar" |
| Display | full-color LCD with an NFC lock and a USB charging port |
| Lights | headlight with a built-in horn; a taillight that brightens under braking |
| Weight | 106 lb in the table and the drawing; 110 lb (50 kg) in the detail block |
| Payload | 350 lb (160 kg) |
| Rider height | 5'3" to 6'5", on Tesway's drawing |
| Seat height | 33.5 to 40 in, on the same drawing |
| Length and wheelbase | 73.2 in overall, 51.2 in between the axles |
| In the box | the bike, battery, charger, manual, toolkit, headlight, display, both fenders, horn, seat, two reflectors, two NFC cards and pedals; the detail block adds two keys and a "Backed Seat" |
The rows are Tesway's own words and figures as they read on September 26, 2026: the table and detail block of the X7 PRO page, the dimension drawing further down it for heights and lengths, and the manual for the assist levels, throttle, cruise control, walk assist and 6-hour charge. The 3,120 Wh is 52 V times 60 Ah.
Two figures come in pairs. Tesway prints two weights and two charge times for the X7 PRO; this page prints both of each, and plans on the heavier weight and the longer charge.
One motor in the rear hub, on the X7's frame and pack
Tesway sells two X7s on our shelf. The X7 AWD puts a hub motor in each wheel; the X7 PRO keeps one, in the back, as its manual puts it: "Your E-bike is driven by a motor embedded in the hub of the rear wheel."
Around that motor sit a step-over frame drawn to the same lengths as the AWD's, the same 52 V 60 Ah pack and a Kenda 20 × 4.0 at each end, for $250 less than the AWD on our store.

Black, from the front left: the round headlight under the fork crown, the one-piece riser bar, "X7" on the frame, the pack behind the seat post and the padded seat with its backrest on the rack.
Tesway's own heading for the bike is "52V 60Ah 200 Miles Long-Range Cargo Ebike", and range is the point of it. Set against its two-motor sibling on Tesway's X7 AWD page, the published differences are these:
| X7 PRO | X7 AWD | |
|---|---|---|
| Motors | one, rear hub | two, a hub in each wheel |
| Rating, peak | 1,000 W, 2,000 W | 2,000 W, 3,600 W |
| Torque | 100 N·m | 200 N·m |
| Top speed, published | 32 mph | 38 mph |
| Weight | 106 or 110 lb | 119 lb |
| Payload | 350 lb | 400 lb (350 lb on its size guide) |
| Charger | 58.8 V 5 A | 58.8 V 8 A |
| Price on our store | $1,549 | $1,799 |
Both columns read September 26, 2026 from Tesway's two product pages, and prices from our listings the same day. The pack, the frame's lengths and the tires are the same on both.
Great bike. Powerful and long lasting on a full charge.
One of fifteen owner reviews on Tesway's X7 PRO page, quoted word for word.

Blue, from the drive side: the rear hub motor behind the 7-speed cassette, the chain running forward to the guarded chainring, and the backrest at the end of the rack.
The frame stays in one piece. Tesway calls it "The new non-foldable patented frame" and fits it with a one-piece bar. On paper, then, the X7 PRO is one rear motor, 3,120 Wh and a long rack with a seat on it, on a frame you swing a leg over.
Does the X7 PRO fit you? Saddle, step-over and reach
Tesway's seat range, 33.5 to 40 inches, puts the saddle at the fit formula's height for at least 93 of every 100 riders between 5'0" and 5'6", for 80 of 100 at 5'8", 37 at 5'10" and 8 at 6'0"; Tesway recommends the bike for riders from 5'3" to 6'5".
The bar stands tall: the drawing's 49.2-inch handlebar height matches the top of the cockpit on Tesway's photograph, and with a relaxed back the median rider leans 2 to 6 degrees off vertical and carries 6 to 10 percent of body weight on the hands.
Every figure here comes from setting each of the 6,068 bodies measured in the US Army's 2012 anthropometric survey on the X7 PRO's geometry, each saddle at 109% of inseam.
Three steps find your row:
- Measure your inseam barefoot. Back against a wall, pull a hardback book up firmly between your legs, level like a saddle, and have someone measure from the floor to its top edge.
- Look up your height in the tables below and see that your inseam sits inside its range; past a 33.5-inch inseam, the saddle is already at the top of its post.
- Settle the height at home using the knee and heel checks in the setup answer.
Seven of the drawing's figures bear on fit.
| What the drawing gives | Tesway's figure |
|---|---|
| Recommended heights | 5'3" to 6'5" |
| Seat height | 33.5 to 40 in |
| "Standing height" | 24.4 in |
| Handlebar height | 49.2 in |
| Reach | 18.1 in |
| Wheelbase | 51.2 in |
| Load capacity | 350 lb |

Tesway's X7 PRO drawing. Scaled from its 51.2-inch wheelbase onto Tesway's side photograph, the tire, the overall length, the standing height and the chainstay each land within 3.5 percent.
Is the seat post long enough for my legs?
Yes for nearly every rider up to 5'6" and four in five at 5'8"; at 5'10" it reaches about one rider in three, and from 6'0" up the post runs out first for almost everyone. The formula sets the saddle top 109% of your inseam above the pedal axle (Peveler et al., 2005), with 106% accepted in published work as a lower setting (Ferrer-Roca et al., 2012).
How high that sits above the floor depends on three figures Tesway leaves out, each read off its side photograph: a crank axle 11.9 inches up, a 7.0-inch crank, and a seat post at 72.0° to the horizontal.
| Your height | Typical inseam | Saddle height, median rider | At 109% | At 106% |
|---|---|---|---|---|
| 5'0" | 27.1–29.7 in | 34.8 in | 93 of 100 | 66 of 100 |
| 5'2" | 28.0–31.1 in | 35.9 in | 99 of 100 | 96 of 100 |
| 5'4" | 29.1–32.2 in | 36.9 in | 100 of 100 | 100 of 100 |
| 5'6" | 30.2–33.5 in | 38.1 in | 95 of 100 | 99 of 100 |
| 5'8" | 31.1–34.3 in | 39.1 in | 80 of 100 | 96 of 100 |
| 5'10" | 32.2–35.5 in | 40.3 in | 37 of 100 | 75 of 100 |
| 6'0" | 33.2–36.7 in | 41.5 in | 8 of 100 | 30 of 100 |
| 6'2" | 34.3–37.5 in | 42.6 in | 0 of 100 | 6 of 100 |
The median rider's floor-to-saddle height at each height, and how many riders of 100 have 109% and 106% settings inside Tesway's 33.5 to 40 inches; Army survey bodies, men and women together. Where the post falls short, the median shortfall is about 0.7 inches at 5'10", 1.6 at 6'0" and 2.6 at 6'2".
The post at full height equals 109% of a 33.5-inch inseam and 106% of a 34.4-inch one. Longer legs than that leave the saddle at its stop, with the knee more bent at the bottom of each stroke than the formula would set it.
The low end has its own limit. The 33.5-inch minimum equals 109% of a 27.2-inch inseam, so a rider with a shorter inseam finds the saddle higher than the formula asks; between 5'0" and 5'2", check your inseam against that figure before ordering.
How much room is there over the top tube at a stop?
Plenty from 5'2" up: at every height from there, 95 of 100 riders clear Tesway's 24.4-inch "Standing height" by 3.6 inches or more, and the frame's lowest top edge measures 24.8 inches on its photograph.
Here the drawing and the photograph agree within half an inch, which is why both columns sit side by side:
| Your height | Typical inseam | Clearance at 24.4 in | At 24.8 in |
|---|---|---|---|
| 5'0" | 28.4 in | 2.7 in | 2.3 in |
| 5'2" | 29.5 in | 3.6 in | 3.3 in |
| 5'4" | 30.5 in | 4.7 in | 4.3 in |
| 5'6" | 31.7 in | 5.8 in | 5.5 in |
| 5'8" | 32.6 in | 6.7 in | 6.4 in |
| 5'10" | 33.8 in | 7.8 in | 7.5 in |
| 6'0" | 34.9 in | 8.8 in | 8.4 in |
| 6'2" | 36.0 in | 9.9 in | 9.6 in |
Barefoot inseam minus the drawing's 24.4 inches, and minus the 24.8 inches measured at the frame's lowest top edge on Tesway's photograph. A cell is the clearance that 95 of every 100 riders at that height have or beat.
How far do I lean to reach the bars?
Very little: measured from the crank axle, the grips are 11.9 to 15.4 inches forward and 33.1 to 34.4 inches up, which tips the median rider 2 to 6 degrees off vertical. In Priego Quesada and colleagues' 2017 study, twenty recreational riders tried three trunk angles and found the most upright the most comfortable.
Each lean in the table is the smallest trunk angle at which a straight arm meets the grip from the sit bones, taken from the torso and arm lengths of every survey body. The lean stays small at every height; sit further back on the saddle and it grows toward the top of the last column's range.
| Your height | Lean from upright, median rider | Across saddle and grip positions |
|---|---|---|
| 5'0" | 2° | 0–12° |
| 5'2" | 3° | 0–13° |
| 5'4" | 4° | 0–13° |
| 5'6" | 5° | 0–14° |
| 5'8" | 6° | 0–15° |
| 5'10" | 6° | 0–15° |
| 6'0" | 6° | 0–14° |
| 6'2" | 4° | 0–13° |
The median rider's lean from vertical at each height, sitting mid-saddle; the last column spans sitting forward or back on the saddle and the measured bracket on where the grips sit.
Will my hands and wrists take much weight?
No more than 6 to 10 percent of body weight, if you let your back relax. Against that, a laboratory study of 10 road racers on the brake hoods measured 15% of body weight on the bars (Carahalios, 2015), and the X7 PRO's median rider stays below it at every height in the table.
Leaning further forward moves the load onto the heel of the hand, over the ulnar nerve; across 36 riders, pressure there was highest in the most stretched hand position (Slane et al., 2011), and padded gloves lowered palm pressure by 10 to 28% in that study.
| Your height | Share of your weight, back relaxed | Median rider's weight | On each hand |
|---|---|---|---|
| 5'0" | 6% (5–13%) | 126 lb | about 4 lb |
| 5'2" | 7% (5–13%) | 139 lb | about 5 lb |
| 5'4" | 8% (5–14%) | 147 lb | about 6 lb |
| 5'6" | 8% (5–14%) | 166 lb | about 7 lb |
| 5'8" | 9% (5–15%) | 179 lb | about 8 lb |
| 5'10" | 10% (5–15%) | 192 lb | about 9 lb |
| 6'0" | 9% (5–14%) | 204 lb | about 9 lb |
| 6'2" | 8% (5–14%) | 216 lb | about 9 lb |
The hands' largest share of body weight with the back relaxed, from each body's segment weights (Clauser et al., 1969), at the survey's median weight for that height; the bracket runs across the saddle and grip positions.
What is the quickest way to set the saddle?
Aim for a knee that stays bent 25 to 35 degrees with the pedal at the bottom of its turn (Peveler et al., 2007). In its safety check, the manual only asks you to confirm "the seat is adjusted properly", so the height is yours to set.
As a first pass, put your heel on the lowest pedal and raise the saddle until that leg just straightens. Among 19 cyclists, that heel method landed 70% inside the target range, more than either inseam formula managed in the same study (Peveler et al., 2005).
The fit arithmetic
The section runs on three rules. Saddle: 1.09 × inseam above the pedal axle. Lean: the smallest trunk angle that lets a straight arm meet the grip. Hand load: upper-body weight × lean ÷ reach to the grip.
For a 5'8" rider with the median 32.6-inch inseam, the formula asks for 35.6 inches from the pedal, which is 28.5 inches above the crank axle once the crank is subtracted and 39.1 inches from the floor, inside the post's 40.
LeMond's rule sits a touch higher on this frame. Its 88.3% of inseam from the crank axle comes to 28.8 inches, or 110.0% of inseam from the pedal once the crank is added, against the 109.2 ± 0.9% Peveler and colleagues report; the crank length read off the photograph accounts for the difference.
| 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 |
| Seat height | 33.5–40 in, from the ground | Tesway's drawing |
| Crank length | 7.0 in (6.8–7.3) | measured on Tesway's side photograph |
| Crank axle height | 11.9 in (11.7–12.2) | measured on Tesway's side photograph |
| Seatpost angle | 72.0° (69.0–75.0°) | measured on Tesway's side photograph |
| Grip center | 11.9–15.4 in ahead, 33.1–34.4 in above the crank axle | measured on Tesway's side photograph |
| Standover | 24.4 in listed; 24.8 in measured | Tesway's drawing; measured on its photograph |
| Segment weights | head and trunk 58.0%, each arm 4.9% of body weight | Clauser et al., 1969 |
Tesway publishes no crank length, crank height, seatpost angle or grip position, so the model reads all four from Tesway's side photograph, sized by the 51.2-inch wheelbase between the axle centers, after first checking the photograph against Tesway's own lengths.
| Dimension | Tesway lists | Measured on its photograph (white studio background) | Gap |
|---|---|---|---|
| tire (wheel) diameter | 23.2 in | 23.6 in | +1.7% |
| total length | 73.2 in | 74.7 in | +2.1% |
| standover (drawing 'Standing height') | 24.4 in | 24.8 in | +1.5% |
| handlebar height, grip-center mean | 49.2 in | 45.6 in | −7.2% |
| handlebar height, top of the cockpit | 49.2 in | 49.0 in | −0.4% |
| chainstay (rear axle to crank spindle) | 23.6 in | 23.1 in | −2.2% |
Four of Tesway's lengths agree with the photograph within 3.5 percent: the tire, the overall length, the standing height and the chainstay. The drawing's 49.2-inch handlebar height matches the top of the cockpit on the photograph, 49.0 inches, while the grips sit lower at 45.6; that reading is not counted, and the cockpit figures use the grips as measured.
Taller than 5'8", or between two rows? Email support@redtailebikes.com with your height and inseam, and we will send back your saddle and reach figures from this fit model before you pay. Blue costs $1,549, the same as Black.
Buy the Blue X7 PROThe motor: 1,000 W rated, 2,000 W at peak, in the rear hub
Tesway's specification table prints "52V 1000W | Peak 52V 2000W" beside 100 N·m, and the detail block restates the pair as "Rated Power 52V 1000W | Peak Power 52V 2000W". Read the two numbers differently: 2,000 W is a burst the system allows for a moment, and 1,000 W is the load the motor is built to carry all day, the figure the class section weighs.
The X7 AWD shares its work between two hubs; the X7 PRO has one, and nothing drives the front wheel. Tesway's feature text sells that single motor as "2000W peak motor and 100Nm torque", and the manual confirms where it lives: in the rear hub.

The front wheel in Tesway's image: a Kenda 20 × 4.0 with its reflective stripe, the front disc and the fork leg. The X7 PRO's motor turns the rear wheel.
Hills are where one motor shows. Up an 8% grade at 10 mph on the throttle, the X7 PRO spends 217 Wh of the pack for each 1,000 feet it climbs, where our X7 AWD review computes 197 Wh with both motors pulling. On level pavement the single motor comes out ahead instead: 162 miles at 16 mph on the throttle, to the AWD's 155.
The chain does not pass through the motor. Gears set how fast your feet turn, and the hub spins at road speed whichever cog is in use; our e-bike motor guide sets out hub motors against mid-drives. The effort table shows what your own pedaling saves.
The half-twist throttle moves the bike with no pedaling, and the manual's cruise control, "triggered by long-press the minus key", holds a speed "in the pure electric mode". Pedal assist runs five levels plus 0, and walk assist moves the bike while you hold the minus key and push; the PRO manual gives no speed for it.
Tesway's feature text also says: "Factory-locked mode complies with 250W and 25 km/h limits, while unlocked speeds can reach 52 km/h where legally permitted." The detail block's "Default Speed" is 16 mph, and 25 km/h is 15.5 mph; the class section takes up what a locked setting does and does not settle.
The battery: 52 V × 60 Ah = 3,120 Wh, and which voltage is yours
Fifty-two volts times sixty amp-hours makes 3,120 watt-hours, the energy for the motor, the lights and the display. Tesway's detail block weighs the pack at 28 lb (12.7 kg), so the bike without it comes to about 78 lb on the table's 106 lb, or 82 lb on the detail block's 110.

Black, from the front right: the pack's carry handle behind the seat post, the padded rack seat with its backrest, and the gold-reservoir shock above the rear wheel.
Match the voltage on your pack's label before you buy a spare pack or charger. The X7 PRO Tesway sells today is the 52 V build: both colorways' SKUs in Tesway's product record end in "52V". Tesway's charger listing names a 48 V X7 PRO as well, and pairs the 52 V one with the 58.8 V 5 A charger.
That 58.8 V 5 A charger was $139 in our Tesway parts collection on September 26, 2026. For a spare pack, Tesway's battery listing maps its 48 V 60 Ah pack to the X5 PRO and X7 PRO and its 52 V pack to the AWD bikes, so send us a photo of your pack's label and we will confirm the right one with Tesway before you pay.
The pack is keyed, and heavy. The manual has you press the key in and turn it counterclockwise to release the pack, then warns that "the battery is quite heavy, and you should take care not to drop it". Copy the spare key early: "If you lost both keys, you will be unable to remove the battery from the E-bike." A replacement lock cylinder is $25.99 in our Tesway parts collection.
Charge it from about 20 percent. The manual recommends starting "when the power is less than 20 percent" and allows overnight charging, "Leaving it connected for overnight charging is OK", while also asking: "Don't charge in unattended condition for a long time." Charge where you can check on it, and for a pack that will sit, it says to "charge it fully and recharge it every month".
The two charge times differ: "About 10 hours" in the product page's table, and 6 hours from empty in the manual. Plan on the longer one. At its rated 58.8 V and 5 A the charger delivers 294 W, so the 20-to-100% refill the manual recommends, 2,496 Wh, takes about 8.5 hours before any charger losses.
Over its life, the pack should see "600 charging and discharging cycles" under normal use, by the manual's estimate. In cold weather, its troubleshooting table gives one remedy for a pack that falls short: warm it "above 0℃ (32℉)".
How far the X7 PRO goes: range by speed, hill, load and cold
On level pavement a full pack takes a 180 lb rider about 162 miles at 16 mph on the throttle, about 124 at 20 mph, and about 233 at 16 mph with easy pedaling. Held to 10 mph up a continuous 8% grade on the throttle, a charge lasts about 30 miles.
Your own figure takes three steps:
- Look up how fast you ride, and how hard you pedal, in the first two tables.
- Then count the climbing: each 1,000 feet gained at 10 mph costs the pack 181 Wh on a 4% grade and 235 Wh on a 10% grade on the throttle, less when you pedal (the hills table).
- Correct for load and temperature, then plan on 80% of the pack.
Each figure is one steady ride, computed from Tesway's specifications, a comparable hub motor's published figures, drum measurements of ten fat tires and a cycling-power model validated on an open road. The formula subsection works one ride through and sets two riders' days beside the results.
Does speed cut the X7 PRO's range? Miles at each speed
Yes, and fast: on the throttle, 10 mph stretches a charge to 237 miles, while 20 mph ends it at 124. From 16 to 20 mph the figure drops from 162 to 124 miles, since the air's share of the work rises with the cube of speed; (20 ÷ 16)³ is about 1.95, so 20 mph asks nearly twice the air power of 16.
| Speed, flat | Per mile | Full charge | With 20% kept |
|---|---|---|---|
| 10 mph | 13.2 Wh | 237 mi | 190 mi |
| 12 mph | 14.8 Wh | 211 mi | 168 mi |
| 15 mph | 18.0 Wh | 173 mi | 139 mi |
| 16 mph | 19.2 Wh | 162 mi | 130 mi |
| 18 mph | 22.0 Wh | 142 mi | 114 mi |
| 20 mph | 25.1 Wh | 124 mi | 100 mi |
| 25 mph | 34.5 Wh | 90 mi | 72 mi |
Throttle only, one rear motor, level pavement, a 180 lb rider, 77 °F air. The bike leaves the box at 16 mph; every faster row assumes a setting beyond that default, a change the class section discusses. The table stops at 25 mph: at its 1,000 W rating the motor holds about 27.5 mph on the flat in the model. The last column keeps back the 20% at which the manual suggests charging.
At 16 mph, 75 W from your legs lifts the figure from 162 miles to 233, close to the 237 the throttle alone manages at 10 mph. Easy pedaling here is 75 W and steady pedaling 150 W.
With the motor off, 75 W alone would move this bike at about 8.6 mph on level ground and 150 W at about 12.7, so choose the column that matches what you could hold unaided.
| Speed, flat | Throttle only | Easy pedaling (75 W) | Steady pedaling (150 W) |
|---|---|---|---|
| 16 mph | 162 mi | 233 mi | 395 mi |
| 18 mph | 142 mi | 187 mi | 266 mi |
| 20 mph | 124 mi | 154 mi | 199 mi |
| 25 mph | 90 mi | 102 mi | 117 mi |
Full-pack miles on the flat for a 180 lb rider on the single motor; at 16 mph, easy pedaling draws 13.4 Wh a mile from the pack and the throttle alone 19.2. In the 395-mile cell your legs outwork the motor, which leans on the least-checked part of the model, its motor losses at light load (Limitations item 5).
Whatever assist level you pick, the pack pays for the speed and the effort in your row and nothing else. Among the manual's own range tips is "Frequent changes in speed will consume more energy."
Do gears or pedaling save battery on the X7 PRO?
Gears are for your knees; pedaling is for the pack. With the motor in the hub, a shift changes your cadence and leaves the motor's load where it was, so at a given speed and grade the pack's draw falls only as your effort rises:
| Your ride | Throttle only | Easy pedaling (75 W) | Steady pedaling (150 W) |
|---|---|---|---|
| 16 mph, flat | 19.2 Wh | 13.4 Wh | 7.9 Wh |
| 20 mph, flat | 25.1 Wh | 20.3 Wh | 15.7 Wh |
| 12 mph, 4% grade | 51.5 Wh | 40.6 Wh | 30.5 Wh |
| 12 mph, 8% grade | 100.7 Wh | 86.3 Wh | 72.9 Wh |
Pack watt-hours per mile, 180 lb rider, 77 °F air, one motor; easy pedaling is 75 W from you and steady pedaling 150 W.

The 52-tooth chainring inside its guard, with the crank and a pedal; Tesway says the guard "prevents chain drops and clothing snags".
Keep your cadence comfortable with the seven gears and drop to the low ones before a start or a climb. On one motor your effort matters more on a hill than it does on the AWD, as the hills table shows.
How much battery does a climb cost?
At 10 mph on the throttle, each 1,000 feet of climbing on a 4 to 10% grade costs 181 to 235 Wh, or 159 to 212 with easy pedaling. Raising you and the bike accounts for 46 to 60% of the throttle figure, and the motor and the pack lose the rest; the manual's list of range drains includes "Rough road conditions and hilly terrain will consume more energy."
Rider and bike together, 180 lb plus 110, come to 290 lb; gaining 1,000 feet with that load needs 109 Wh at the rear wheel alone.
At 8% and 10 mph on the throttle, each 1,000 feet takes 217 Wh from the pack, so the whole 3,120 Wh would carry you up about 14,400 feet with none left for the flat. The model gives nothing back on descents, which keeps a hill budget on the careful side.
| Grade | Wh a mile | Miles, throttle | Miles, easy pedaling | Top steady speed |
|---|---|---|---|---|
| 2% | 30 Wh | 102 mi | 164 mi | 25.3 mph |
| 4% | 51 Wh | 61 mi | 83 mi | 21.9 mph |
| 6% | 76 Wh | 41 mi | 52 mi | 18.9 mph |
| 8% | 105 Wh | 30 mi | 36 mi | 16.3 mph |
| 10% | 137 Wh | 23 mi | 27 mi | 14.2 mph |
| 12% | 173 Wh | 18 mi | 21 mi | 12.4 mph |
| 15% | past the peak | — | 15 mi | 8.0 mph |
Every figure at 10 mph with 180 lb aboard and one motor; the second and third columns are throttle only and the fourth adds 75 W of easy pedaling. The last column is the fastest steady speed the motor holds on the throttle on that grade in the model, within its 1,000 W rating and the 2,000 W peak Tesway publishes.
On grades past 10%, pedal. On 15% the throttle alone cannot hold 10 mph inside that 2,000 W peak in the model, and holds about 8 mph instead; with 75 W of easy pedaling it keeps 10 mph. The manual's troubleshooting table answers a steep, windy or heavy ride that falls short the same way, by adding your own effort.
Hills and flat miles add together. Thirty level miles at 16 mph on the throttle use about 577 Wh, and a 1,500-foot climb at 8% about 326 Wh more: about 902 Wh, or 29% of the pack. Headwinds and traffic stops cost extra on top, because the model rides each mile at a single steady speed.
How much does a heavier rider or load cost?
Extra weight costs far more range uphill than on the flat. Weight raises the tire drag and the work of lifting, and leaves the air drag alone, so the spread between a light and a heavy load grows with the grade. The manual's line is "Carrying more weight on the E-bike will consume more energy."
| You plus your load | 16 mph flat, throttle | 20 mph flat, throttle | 8% climb, 10 mph |
|---|---|---|---|
| 130 lb | 175 mi | 132 mi | 38 mi |
| 180 lb | 162 mi | 124 mi | 30 mi |
| 230 lb | 151 mi | 118 mi | 24 mi |
| 280 lb | 142 mi | 112 mi | 20 mi |
| 350 lb | 130 mi | 104 mi | 16 mi |
The rider plus everything carried; the bike's 110 lb, the heavier of Tesway's two weights, is added in every row. Throttle only, one motor. The 350 lb row is Tesway's payload for the X7 PRO.
Going from 180 lb aboard to 350 lb takes the level 16 mph ride from 162 miles to 130, and the 8% climb from 30 miles to 16. A full load costs about a fifth of the flat range and nearly half of the climbing range, because every extra pound has to be lifted on a grade (the hills section).
How much range does the cold take?
Each drop in temperature costs miles. The 16 mph throttle ride worth 162 miles at 77 °F comes to about 128 at 32 °F, the temperature the manual gives when it says to warm a pack that runs short in the cold.
| Air | Pack energy vs 77 °F | 16 mph flat, throttle | At or above the manual's 32 °F |
|---|---|---|---|
| 95 °F | 99% | 170 mi | yes |
| 77 °F | 100% | 162 mi | yes |
| 68 °F | 98% | 154 mi | yes |
| 50 °F | 93% | 139 mi | yes |
| 41 °F | 91% | 132 mi | yes |
| 32 °F | 89% (80–93) | 128 mi (115–134) | yes |
| 14 °F | 82% (40–83) | 116 mi (56–116) | no: below it |
Level ground, 180 lb aboard, one motor. The middle figure in each row comes from McMaster University's measured LG HG2 cell, recomputed at a 0.5C discharge from the lab's runs at 77, 50, 32 and 14 °F, with the rows between interpolated and the cells assumed to sit at air temperature.
The brackets show how far published cell data disagree: the low end is the least capacity a Samsung data sheet lists at that temperature for a one-to-four-hour discharge (25R and 30Q at 32 °F, 35E at 14 °F), and the high end the most energy Casado and colleagues recorded in 2025 at a slower rate.
Freezing air stacks three losses. The cells give back about 89% of their 77 °F energy, 80 to 93% across sources, and air at 32 °F is about 9% denser, by the gas law in the U.S. Standard Atmosphere, so it takes more push to move through.
Cold rubber rolls harder as well: the model raises rolling resistance 0.5% for every °F below 77 °F (0.9% per °C), a rate between Rothhämel's fit for a 42 mm tire and Bicycle Rolling Resistance's road-tire average, and keeps the 41 °F value for colder air.
The 14 °F row sits below the 32 °F in the PRO manual, which gives no wider window for charging or storage. In winter, keep the pack indoors between rides; the manual asks you to "Avoid parking your E-bike outside when there is rain or snow".
Do the fat tires cost range, and does posture matter?
Which tire rolls under you moves flat range more than how you sit. On Bicycle Rolling Resistance's drum, ten 26 × 4.00 fat tires needed between 23.2 and 42.1 W each to roll at 18 mph under a 94 lb load, inflated to 12 psi.
The X7 PRO's 20 × 4.0 Kenda has no drum reading, so the model uses the middle of the ten, a coefficient of 0.0105, with the heaviest-rolling Kenda on the drum as the slow case.
| Rolling resistance | 16 mph flat, throttle | 20 mph flat, throttle |
|---|---|---|
| 0.0070 · the lowest of ten fat tires on the drum | 189 mi | 140 mi |
| 0.0105 · the median of ten fat tires (used) | 162 mi | 124 mi |
| 0.0126 · a Kenda Juggernaut Pro, the heaviest-rolling Kenda fat tire on the drum | 150 mi | 117 mi |
Level ground, 180 lb aboard, one motor, a full pack. The Juggernaut Pro's own test page lists its coefficient as 0.01262.
For pressure, the PRO manual points you to the tire itself: "Refer to the tire’s sidewall for the pressure range." It adds that "Keeping the tires properly inflated and keeping the E-bike clean and well lubricated will save energy." The drum figures above were measured at 12 psi.
How you sit counts for more as speed rises. Tengattini and Bigazzi measured 0.640 m² of drag area for 37 upright cruiser riders, the figure used for this tall cockpit, and 0.603 m² for 90 everyday mountain-bike riders, which would lift the 20 mph throttle ride from 124 miles to 130. Soft ground is in no drum table, so email us the route and we will model it.
Tesway's 170 and 200 miles, as steady rides
Each of Tesway's range figures lines up with a steady ride in the model. The specification prints 200 miles on pedal assist and 170 as "Pure Electric Range", and the detail block gives "170-200Miles".
| Tesway's figure | Throttle only | Easy pedaling (75 W) | Steady pedaling (150 W) |
|---|---|---|---|
| Pedal assist, 200 miles | about 12.9 mph | about 17.4 mph | about 20 mph |
| Pure electric, 170 miles | about 15.4 mph | about 19 mph | about 21.3 mph |
The level-ground speed that would empty all 3,120 Wh over exactly Tesway's distance, for a 180 lb rider on the one motor; 200 miles means 15.6 Wh a mile and 170 miles 18.4.
On that reading, Tesway's 200 miles matches easy pedaling near 17 mph, and its 170 matches the throttle near 15.4 mph. At 16 mph the model's throttle ride of 162 miles falls just short of the 170, and its easy-pedaling ride of 233 goes past the 200.
Plan on 80% of the row that fits your ride. The manual recommends plugging in "when the power is less than 20 percent", so keeping that fifth in the pack is simply following it: at 16 mph on the throttle, the plan is 130 miles of the full 162.
Choose your row, keep a fifth of the pack back, and add the climbing. Each 1,000 feet gained at 10 mph costs 181 to 235 Wh on the throttle and less with pedaling. For 180 lb on the flat, the planning figures are 130 miles at 16 mph on the throttle and 100 at 20.
Thirty flat miles at 16 mph and 1,500 feet of 8% climbing use about 902 Wh on the throttle, a little over a third of the 2,496 Wh that 80% of the pack holds. Email us your distance, climbing, weight with gear and usual speed, and we will work the ride out before you order. Blue is $1,549, and so is Black.
Buy it in Blue for $1,549The range formula, worked through
Every figure above starts from one equation. Martin and colleagues' 1998 model, validated on an open road, gives the power the rear wheel needs to hold a constant speed in still air:
P = v × [ m × g × (Crr × cos θ + sin θ) + ½ × ρ × CdA × v² ], P being the power at the rear wheel
In it, v is road speed, m the mass of rider, cargo and bike, g gravity, θ the slope's angle, Crr the tires' rolling resistance (0.0105 means a drag equal to 1.05% of the weight on the tires), ρ the air's density and CdA the rider's drag area, a measure of how much air the rider pushes aside.
The first bracketed term in the equation covers the tires and the slope, the second the air; multiplied by v, the air's share rises with the cube of speed.
Four stages lie between the wheel and the pack:
- Pedaling: the chain delivers 97.7% of your effort to the rear wheel (Martin and colleagues' figure), and the motor covers what remains.
- The one hub motor carries the motor's whole share.
- The motor follows a comparable motor's published figures: Bafang's RM G0H0 hub, which the 2021 OEM workbook lists at 510 rpm unloaded, 426 rpm at its rating, 1,000 W at 48 V and an efficiency of "≥ 80" percent. The model sets the unloaded speed at Tesway's published 32 mph on the 23.2-inch wheel, keeps Bafang's ratio of rated to unloaded speed, takes 80% at the rated point and lets efficiency fall as the load lightens; the pack's draw is capped at the 2,000 W peak Tesway publishes.
- The pack loses a little of its energy inside, following the efficiency Arango, Lopez and Ceren measured on a 48 V pack.
Then Wh per mile = pack watts ÷ mph, and range in miles = 3,120 Wh × the share of the pack's energy left at that temperature ÷ Wh per mile.
| Input | Value used | Where it comes from |
|---|---|---|
| Bike | 110 lb | Tesway's detail block |
| Rider and cargo | 180 lb; the weight table also runs 130, 230, 280 and 350 | 350 lb is the payload in Tesway's detail block |
| Battery | 52 V × 60 Ah = 3,120 Wh | Tesway's specification |
| Motor | one, 1,000 W at its rated speed, 32 mph unloaded, 80% at the rated point, torque capped at 100 N·m, pack draw capped at 2,000 W | Bafang OEM workbook 2021, RM G0H0; Tesway's 32 mph, 100 N·m and 2,000 W |
| Wheel | 23.2 inches across | the "Wheel Diameter" on Tesway's drawing |
| 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 | 2.9% at 16 mph, more at climbing currents | 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 |
One ride, worked through: 180 lb aboard, 16 mph on level pavement, one motor, throttle only. At the rear wheel the ride needs 235.9 W: 97.3 W to roll the tires and 138.6 W to push the air.
The 23.2-inch rear wheel spins at 232 rpm at 16 mph. The motor model (1.071 N·m of torque per amp, a 0.356 Ω winding and a 1.02 A no-load current, each derived from Bafang's published figures) has the motor making 9.7 N·m on 10.1 A at 79% efficiency, so it draws 298.6 W.
With the pack's own losses added, the battery delivers 307.6 W, which is 19.22 Wh a mile at 16 mph; 3,120 ÷ 19.22 comes to about 162.3 miles, or 129.8 with 20% held back.
Two published benchmarks, reproduced first. The model returns both before it computes anything:
| 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% |
Reproduced by the model's self-test from Appendix I of Martin and colleagues (8.36 m/s, a 90 kg system, a 0.3% grade) and from the RM G0H0's rated point in Bafang's workbook. The X7 PRO's unloaded speed is set to Tesway's 32 mph, where Bafang's own 510 rpm scaled to 52 V would give 38.1; Limitations item 6 shows what that choice moves.
Two riders' days against the model. Both rides below carry the same 52 V 60 Ah pack and were filmed about a year before this review, on units that Raspy Rides and e-VRC each describe as folding in their videos, where Tesway's current page describes a non-foldable frame. Neither they nor the five other X7 PRO ride videos read for this review run a pack to empty.
Raspy Rides spent a day of food deliveries "all Throttle" at 175 lb, "going 30 mph on the big roads", and stopped at 60.2 miles with three of five bars still showing. At a steady 25 mph for a 175 lb rider, the model spends about 66% of the pack on 60.2 miles; the bars are not an energy gauge, so the day brackets the model rather than pinning it.
e-VRC rode 50.3 miles in pedal assist 5, at speeds he called up to 30 mph, on a cold day with a backpack, and finished with two bars left. Both rides are floors, not endpoints: neither ran the pack down, and each sits below every model row it resembles, so plan a loaded or fast day closer to those miles than to the table.
Brakes, lights and the NFC display
Tesway's detail block lists four-piston hydraulic brakes at both wheels, on rotors it gives as 230 mm by 2.3 mm, where the X7 AWD's page lists 203 mm. The manual's pre-ride check asks you to replace pads before their friction material wears thinner than the backing plate.
On September 26, 2026, our Tesway parts collection sold X7 PRO pads at $20.99 a pair, or $39.99 for two pairs.

The headlight, a round multi-LED lamp clamped under the fork crown, above the front fender.
Tesway describes the front light as a "Brighter LED headlight with built-in electric horn" and the rear as a "Smart Integrated Taillight" that "Auto-brightens during braking".

The taillight, a red bar under the end of the rack, above the rear fender.
Tesway's feature text credits the color display with "tap-to-ride NFC unlocking and built-in USB charging port". To start, the manual has you turn the pack on with its key, then "Press the power button or use the NFC card to turn on the display"; two cards come in the box, and a replacement is $25.99 in our Tesway parts collection.
Fork, shock, tires and seven gears
Tesway lists a "Front Hydraulic Fork" with 120 mm of travel and a hydraulic lockout, which it says will "Instantly switch from cushioned rides to rigid efficiency with one click". At the rear sits "Rear Spring Suspension", a coil shock with a gold reservoir in Tesway's photographs, and together, in Tesway's words, the X7 PRO "absorbs impacts from rough surfaces".

The one-piece riser bar Tesway calls non-folding, with the brake levers, the cable bundle and a stem plate carrying Tesway's T.
The tires are 20 × 4.0 Kendas with "360° reflective strips". The drivetrain pairs a Shimano 7-speed derailleur and shifter with a 52T chainring behind a double guard, and Tesway describes the bar as an "Ultra-sturdy one-piece design" and the saddle as an "Extra-Wide Comfort Saddle".
Replacement 20 × 4.0 tires for the X7 PRO ($59.00), inner tubes ($25.99), a 7-speed chain ($25.99) and a rear shock ($59.99) were in our Tesway parts collection on September 26, 2026.
106 to 110 pounds, a 350-pound payload and a seat on the rack
Tesway prints two weights for the X7 PRO: 106 lb in its specification table, which the drawing repeats, and "EBike Weight -110 LBS(50kg)" in its detail block. This page plans on 110 lb; at 106 lb the 16 mph throttle ride gains about a mile, to 163.
The payload reads the same everywhere Tesway prints it: "350 LBS Max Load" on the spec strip, "Max. Payload Capacity -350 LBS(160kg)" in the detail block, and 350 lb on the drawing. Plan it as your weight plus everything you carry, the cautious reading: add it all up before you load the rack, and keep the tires inside the pressure and load ratings their sidewalls print.
On carrying someone, Tesway's documents point two ways. The X7 PRO page promotes "full safety kid seats (with backrest, guardrails & footrests)" and a saddle that "keeps you and your passenger pain-free", and its free pack is "a rear seat set". The manual says the bike "is designed for regular country road use for a single person".
Before anyone rides behind you, write to us: we will get Tesway's answer in writing, including the load limit once a passenger is counted.
For towing, the Tesway Cargo Trailer in our Tesway accessories lists the X7 PRO with the note "(Available for 2026 batch orders only)" and a maximum load of 100 kg (220 lb); tell us your order date and we will check the match first.
For the garage and the car, Tesway's drawing gives 73.2 inches of length and a 49.2-inch handlebar height, and the frame does not fold.
Measure the doorway and the parking spot first. At 106 to 110 lb and 73 inches long, the X7 PRO wants a ground-floor home; with the pack out it still weighs about 78 to 82 lb, and a car rack needs a rating above the full weight.
The Mercer fit test
Every bike we review faces the same seven people, the Mercers, so each one answers the same fit questions (meet the Mercers). Each verdict below rests on a figure Tesway publishes (the height window, the seat range, the standing height, the payload), on the manual's line about children, or on the fit tables.
| Member | Age · Height | Verdict | The number behind it |
|---|---|---|---|
| Frank Kowalski | 63 · 5'10" | Inside the window; the saddle is his check | At 5'10" the post gets 37 of 100 riders to the formula height at 109% and 75 at 106%; his leg clears the 24.4-inch standing height by 7.8 inches or more |
| Ruth Kowalski | 61 · 5'5" | Fits | The post reaches the formula height for 99 of 100 riders at 5'5", and she clears the top tube by 5.3 inches or more |
| Jack Mercer | 48 · 6'1" | Inside the window, with the saddle short of the formula | Tesway's 5'3"–6'5" includes him, but at 6'1" the post reaches the formula height for 2 of 100 riders at 109% and 13 at 106% |
| Dana Mercer | 45 · 5'7" | Fits | The post reaches the formula height for 90 of 100 riders at 5'7" |
| Maya Torres | 32 · 5'6" | Fits | The post reaches the formula height for 95 of 100 riders at 5'6" |
| Cole Mercer | 16 · 5'11" | His state decides | The manual says "Prohibit children to use it for safety" and gives no age; with the motor rated at 1,000 W, his state's rule for such a machine decides whether a 16-year-old may ride it; at 5'11" the post reaches the formula height for 17 of 100 riders |
| Ivy Mercer | 12 · — | No | The manual's "Prohibit children to use it for safety" rules her out at 12, whatever her height |
This frame suits the household's shorter riders best, and the saddle turns into a question from 5'10" up. The step-over table clears the 24.4-inch standing height at every row from 5'2", while the 40-inch top of the post decides how Frank, Cole and Jack sit.
Is it UL certified?
Tesway says the X7 PRO's system and pack both are: its page states that "The entire e-bike system is UL 2849 certified by TÜV, while the battery pack is UL 2271 certified".
The two standards cover different ground. UL 2849 is titled "Electrical Systems for eBikes" and lists "the drive unit, battery, battery management system (BMS)" in its scope; UL 2271 is "Batteries for Use In Light Electric Vehicle (LEV) Applications". If a landlord or insurer asks for proof, email us, and we will request the certificates from Tesway in writing.
Has it been recalled?
No. On September 26, 2026, the Consumer Product Safety Commission's recall data was searched in its title, product-name and manufacturer fields for Tesway, TESWAY, teswaybike and Tesgo, the parent company named on Tesway's European About page, and every field of a 623-record corpus of bicycle, e-bike, battery and scooter recalls was read.
No record names Tesway, and none carries the model code X7. Before its silence counted, the same search had to find known recalls, and it returned Ancheer 1, Specialized 54 and Trek 24.
The class question: 1,000 W rated, 16 mph as delivered
Settle this before ordering. Tesway publishes a motor rating, a default speed, a top speed and a factory-locked mode for the X7 PRO, and an e-bike definition tests more than one of them.
Under 15 U.S.C. § 2085(b), a low-speed electric bicycle has "fully operable pedals", a motor "of less than 750 watts (1 h.p.)", and a top speed "less than 20 mph" on motor power alone with a 170-pound rider aboard.
| What the definition asks | The X7 PRO, in Tesway's figures |
|---|---|
| Fully operable pedals | "Left & Right Pedals" in the box |
| A motor under 750 watts | "Rated Power 52V 1000W", "Peak Power 52V 2000W"; the locked mode "complies with 250W" in Tesway's words |
| Under 20 mph on motor power | 16 mph as delivered; 32 mph published |
Both columns as they read on September 26, 2026, in § 2085(b) and on Tesway's X7 PRO page.
Tesway rates the motor at 1,000 W, above the 750 W in the definition. The factory lock is Tesway's statement about how the bike behaves as delivered; the definition's test is written around the motor, and a setting on that motor is a question for your state, which is why the answer below routes to it.
California's line sits in the same place: Vehicle Code § 312.5(a), as it read on September 26, 2026, builds its definition on "an electric motor that does not exceed 750 watts of power", with class 3 assistance cut off at 28 miles per hour.
A speed setting moves the X7 PRO across a speed line and leaves the motor's rating where it is. The manual handles its full power mode the same way, saying riders "should check against local laws to ensure full power mode is permitted", and notes that the rules "may differ depending on the area you are living".
| Setting | The speed line | Where the X7 PRO lands |
|---|---|---|
| As delivered, 16 mph | Below the federal 20 mph and California's class 2 throttle line | Under the speed lines; the motor is rated at 1,000 W |
| At the 32 mph Tesway publishes | Class 3 assist ends at 28 mph and a class 2 throttle at 20 | Past the speed lines as well |
Each row rests on § 312.5(a), § 2085(b) or the PRO manual, all read on September 26, 2026.
How the X7 PRO is treated on public roads and paths, and what riding it there requires, is then your state's decision. State by state, the definitions are in our 50-state e-bike law atlas; for California in depth, see our California e-bike law page.
The rating on the motor is the fact the class test starts from. Plan your riding around your state's rule for a machine rated above 750 W, tell us where that is, and we will answer before you order.
Trails and public land: who decides
Off the road, the owner or the land agency decides whether the X7 PRO may go, and the federal agencies draw their e-bike rules at the same 750 W.
Bureau of Land Management rules at 43 CFR 8340.0-5 confine the e-bike definition to a motor "of not more than 750 watts (1 h.p.)", and a machine rated higher counts there as an off-road vehicle. 43 CFR 8341.1 then limits such a machine to land the field office has designated "open to off-road vehicle use".
In National Forests, the Forest Service's directives of March 31, 2022 handle e-bikes as motor vehicles, "managing all classes of e-bikes as motor vehicles" in its notice at 87 FR 41278. Where a Ranger District has a motor vehicle use map, 36 CFR 261.13 forbids riding "other than in accordance with those designations".
| Where you plan to ride | Who decides | What to read |
|---|---|---|
| Private land, yours or with permission | the owner | the owner's permission |
| A state or county off-highway vehicle area | that agency | its registration and equipment rules |
| A National Forest road or trail | the Ranger District | its motor vehicle use map (36 CFR 261.13) |
| BLM land | the field office | its open, limited and closed designations (43 CFR 8341.1) |
The land manager's own document settles each row; Tesway's specification settles none of them.
The BLM's penalty provision, 43 CFR 8340.0-7, provides for "a fine of not more than $1,000" or imprisonment "for not longer than 12 months", or both. Our public-land e-bike guide goes agency by agency, and the X7 PRO manual cautions against "extreme maneuvers, such as extreme off-road use, jumping, or carrying an excessive load".
Tell us the trail or the land before you order. Write to support@redtailebikes.com and you will get a plain answer on which rule governs it. Black is $1,549, the same as Blue.
Buy the Black X7 PROGreen flags / Red flags
Green flags
- The full 3,120 Wh pack on one motor: a computed 162 miles for a 180 lb rider holding 16 mph on the throttle, or 233 pedaling lightly.
- $250 below the X7 AWD on our store, on a frame drawn to the same lengths, with the same pack and tires.
- A 350 lb payload, one figure on the strip, the detail block and the drawing.
- Suspension at both ends: a 120 mm fork with a hydraulic lockout and a coil shock at the rear.
- Four-piston hydraulic brakes on rotors Tesway lists at 230 mm, front and rear.
- Seven Shimano gears behind a guarded 52T chainring.
- A tall bar and a short lean: 2 to 6 degrees for the median rider, and no more than 6 to 10% of body weight through the hands.
- Parts on our shelf: X7 PRO brake pads, the 58.8 V 5 A charger, controllers, a headlight, tires and NFC cards.
Red flags
Each is about fit: who the X7 PRO is wrong for, and what to do instead.
- Wrong for long legs that want full extension, past a 33.5-inch inseam. The saddle is already at its highest there; your row in the saddle table shows how far short it falls.
- Wrong if you are 5'10" or taller and want the formula's saddle height. At 6'0" the post gets 8 of 100 riders there; email us your height, and we will suggest a taller frame we sell.
- Wrong if your rides climb steep grades on the throttle alone. On 15% one motor holds about 8 mph within its peak in the model; the X7 AWD puts a motor in each wheel on a frame drawn to the same lengths.
- Wrong if it must go up stairs daily. At 106 to 110 lb, or about 78 to 82 lb without the pack, it is a two-person lift; tell us about the stairs or the rack and we will point you to a lighter bike we sell.
- Wrong where your riding must stay within your state's e-bike classes. The motor carries a 1,000 W rating; send us your state and the roads you use, and we will suggest a class-compliant bike from our range.
- Wrong if you would rather step through than over. The X5 AWD is Tesway's step-through on our shelf, with two motors on the same pack.
- Wrong for trails that admit Class 1 bikes alone. The throttle rules it out there, and so does the motor's rating; send us the trail's name, or check our public-land guide for the agency to ask.
- Not for children. The manual says "Prohibit children to use it for safety"; state age limits are set out state by state in our 50-state law atlas.
Buy it if / Buy something else if
Buy it if you want the X7's big pack for less, on one motor: 3,120 Wh computed at 162 miles at 16 mph on the throttle for a 180 lb rider, with full suspension and a long rack, for private land, gravel, sand and wherever your state allows a machine rated above 750 W.
It also asks for an adult rider inside Tesway's 5'3" to 6'5" window, with the saddle at its top past a 33.5-inch inseam, a ground-level place for a 110 lb bike, and a spot to charge for 10 hours.
For $1,549 you get a rear hub motor rated at 1,000 W, 100 N·m, a removable 3,120 Wh pack, a 120 mm lockout fork and a coil shock, four-piston hydraulic brakes, seven Shimano gears, a headlight with a horn and a long rack with a padded seat. Spread over 12 Shop Pay installments on our listing, that is $139.81 a month at 15% APR, $1,677.72 in all.
On Tesway's page, X7 PRO owners had left 15 reviews by September 26, 2026, every one of them at five stars. One owner summed up the ride and the help: "The bike rides great, and the customer service has been very helpful and responsive."
Buy something else if you need a machine inside your state's e-bike classes, which we will match to your state by email; if your rides climb hard on the throttle, which the X7 AWD answers with a motor in each wheel; or if you want a step-through, which the X5 AWD offers on the same pack.
Our Tesway brand profile sets all five side by side, from this $1,549 bike to the $2,199 C5 AWD Cargo.
Reviews of other machines we sell are gathered on our e-bike reviews hub.
Before you buy: the checklist
Run through these ten before spending $1,549; where the X7 PRO may ride comes first.
- Find the rule for your roads and trails: your state's e-bike definition and the land manager's rules.
- Set the bike against that rule: Tesway rates the motor at 1,000 W.
- An adult rides it. The manual's line on children says so.
- Measure your inseam and find your row in the fit tables: past 33.5 inches the post is fully raised.
- Check your height against Tesway's 5'3" to 6'5" window.
- Add up rider and cargo and keep the total at or below Tesway's 350 lb payload, with the tires inside their sidewall ratings.
- Plan the parking and the lifting for a 106 to 110 lb, 73.2-inch bike plus whatever it carries.
- Find your ride in the range tables, add the climbing, and keep 20% of the pack in reserve.
- Choose a charging spot you can check on, with 10 hours to spare on the 5 A charger.
- Get Tesway's passenger answer in writing through us before anyone sits on the rack seat.
Buying it from us
Why buy the X7 PRO from Redtail
Our listing priced the X7 PRO at $1,549 in Black and Blue on September 26, 2026, with $2,399 as the regular price, the same as Tesway's page that day. What we do for you starts with the order.

Blue, one of the two colorways at $1,549.
| What you get | The detail |
|---|---|
| Price | $1,549 in Black or Blue, both orderable on September 26, 2026 |
| Shipping | Free within the contiguous United States: prepared within 1–3 business days, then 5–10 business days in transit. Alaska, Hawaii, US territories, P.O. boxes and remote areas: ask us first |
| Tesway's gift | The X5/X7 PRO Free Value Pack, "a rear seat set" Tesway lists at $251.94, and its six-piece kit of a bottle holder, phone mount, rear bag, lock, brake pads and mirror, advertised on Tesway's page on September 26, 2026, come with an order here |
| Paying over time | Shop Pay installments: $139.81 a month over 12 months at 15% APR, $1,677.72 in total; plans of 3 and 6 payments run at the same APR. Read September 26, 2026 |
| If something fails | Send photos and your order number, and we open the claim with Tesway and follow it through; our listing says "Redtail coordinates the repair or replacement remotely at no cost to you" |
| If it arrives damaged | Note the damage with the carrier, email us photos within 48 hours, and we file the carrier claim and arrange the repair or replacement |
| A fit answer first | Send your height and inseam, and we will run them through the fit model before you pay |
| Parts and add-ons | Brake pads, the 5 A charger, controllers, tires, a headlight and more in our Tesway parts collection, and a front basket, rack basket, platform, cushion and trailer that list the X7 PRO in our Tesway accessories |
Changing your mind is handled differently. We take back a bike still sealed in its factory packaging when you ask within 72 hours of delivery, keeping a 15% restocking fee plus the return shipping, and canceling an order costs a 3% transaction fee; settle the fit, range and trail questions with us first.
Everything in the table above is our store's own offer, as it read on September 26, 2026. Warranty claims come to us and we take them up with Tesway for you; Blue is $1,549 too.
Buy in Black for $1,549Frequently asked questions
How far can the Tesway X7 PRO go on one charge?
Tesway's own figures are 200 miles with pedal assist and 170 on the motor alone (its specification). Computed for a 180 lb rider on level pavement with its one motor, a full pack covers about 162 miles at 16 mph on the throttle, 124 at 20 mph and 233 at 16 mph with easy pedaling; each 1,000 feet of climbing at 10 mph costs 181 to 235 Wh on the throttle (the range tables).
What is the top speed of the Tesway X7 PRO?
Tesway publishes 32 mph, with a default speed of 16 mph, which is how the bike arrives. In the model the motor holds about 27.5 mph on level ground at its 1,000 W rating with a 180 lb rider, and any setting past the default brings in the class question.
Can the Tesway X7 PRO's speed be unlocked?
Tesway's page says its "Factory-locked mode complies with 250W and 25 km/h limits, while unlocked speeds can reach 52 km/h where legally permitted", and the manual asks riders to check local law before using full power mode. Whether a setting past 16 mph is allowed where you ride is a question for your state, which the class section walks through.
Is the Tesway X7 PRO street legal, and which class is it?
Where a law caps e-bikes at 750 W, as the federal and California definitions do, the X7 PRO's 1,000 W rating is past that line. Delivered at 16 mph, it sits below the speed limits in those definitions, and your state decides how it is treated on the road (the class section).
Tesway X7 PRO vs X7 AWD: what is the difference?
The motors. The X7 PRO has one rear hub motor, "52V 1000W | Peak 52V 2000W" and 100 N·m, and the X7 AWD has one in each wheel, "52V 2000W | Peak 52V 3600W" and 200 N·m. Both carry the 3,120 Wh pack on frames drawn to the same lengths; on our store the PRO is $1,549 and the AWD $1,799.
Tesway X7 PRO vs X5 PRO: what is the difference?
The frame, in Tesway's FAQ: "The main difference between X5 PRO and X7 PRO is the exterior design of the frame." The X5 PRO is a step-through and the X7 PRO a step-over, and Tesway adds that "Other functions are the same." We carry the X7 PRO; for a step-through on our shelf, the X5 AWD has two motors on the same pack.
Is the Tesway X7 PRO dual motor?
No. The manual says it "is driven by a motor embedded in the hub of the rear wheel". Tesway's two-motor X7 is the X7 AWD, and our X7 AWD review covers it.
How much does the Tesway X7 PRO weigh?
Tesway prints 106 lb in its specification table and drawing and 110 lb (50 kg) in its detail block, with the pack at 28 lb, so about 78 to 82 lb with the pack out. Size a car rack or a lift for the full 110 lb plus whatever you carry (the weight section).
How much weight can the Tesway X7 PRO carry?
350 lb, the same on Tesway's spec strip, detail block and drawing, and it has to cover the rider as well as everything carried. Read the pressure and load figures on the tires' own sidewalls too, and the weight table shows the range a full load costs.
What height rider does the Tesway X7 PRO fit?
Tesway's drawing gives 5'3" to 6'5". The seat runs 33.5 to 40 inches, which gets 93 or more of every 100 riders from 5'0" to 5'6" to the formula's saddle height, 80 at 5'8" and 37 at 5'10"; a rider at 5'10" or taller with an inseam above 33.5 inches finds the saddle at its top (the fit section).
Is the Tesway X7 PRO foldable?
No. Tesway's current page describes "The new non-foldable patented frame" and a one-piece bar, and its drawing gives a 73.2-inch length and a 49.2-inch handlebar height. Reviews filmed a year or more ago describe a folding X7 PRO; the bike on our listing today does not fold.
Can the Tesway X7 PRO carry a passenger?
Tesway's documents differ. The product page promotes "full safety kid seats (with backrest, guardrails & footrests)", and its free pack is a rear seat set, while the manual describes a bike "designed for regular country road use for a single person". Email us before anyone rides along, and we will get Tesway's written answer and the load limit that includes the passenger.
What accessories fit the Tesway X7 PRO?
In our Tesway accessories, the front basket, the large rear rack basket, the foldable rear platform, the seat cushion and the Cargo Trailer name the X7 PRO in their compatibility lists; the trailer adds "(Available for 2026 batch orders only)". Send us your order date and we will confirm the fit before you buy.
What battery does the Tesway X7 PRO use, and how long does it take to charge?
A 52 V 60 Ah pack of 3,120 Wh on the bike Tesway sells today, charged by a 58.8 V 5 A charger: "About 10 hours" in the product page's table, 6 hours from empty in the manual. Tesway's parts listings also name a 48 V X7 PRO, so match the voltage on your pack's label before buying a spare (the battery section).
Where do I find the Tesway X7 PRO manual?
Tesway's X7 PRO page links the X5/X7 PRO manual, which covers assembly, the display and its keys, the five assist levels, walk assist, cruise control, charging and the error codes. Full power mode, it says, is a matter of local law, and the class section explains why.
Can I replace the X7 PRO's controller or other parts?
Yes. On September 26, 2026, our Tesway parts collection listed an X7 PRO controller at $99, or $179 for the upgraded Lishui unit, along with an X7 PRO headlight, kickstand and seat post. The manual's error table lists E06 as "Low Voltage Protection" and E09 as "Controller Error"; email us the code and we will confirm the part.
What brake pads does the Tesway X7 PRO use?
Pads made for its four-piston hydraulic calipers: Tesway's X7 PRO brake pads were $20.99 a pair in our Tesway parts collection on September 26, 2026, and the six-piece gift kit advertised on Tesway's page that day, which ships with an order placed here, includes brake pads.
What warranty does the Tesway X7 PRO have?
Order from us and a fault is ours to handle under our policies: you send photos and the order number, we open the claim with Tesway and stay with it, and our listing says Redtail coordinates the repair or replacement "at no cost to you". If you want Tesway's own terms for an order placed with us, ask before buying and we will have them confirmed in writing.
Is the Tesway X7 PRO worth it?
At $1,549 on our store on September 26, 2026, against a $2,399 regular price, with free shipping in the contiguous United States, it pairs the X7's 3,120 Wh pack with one rear motor, full suspension and four-piston hydraulic brakes. It is built for adults inside Tesway's 5'3" to 6'5" range who want range more than climbing speed and ride where a machine rated over 750 W is allowed (the verdict).
Can I finance the Tesway X7 PRO?
Yes: on September 26, 2026, Shop Pay on our listing offered 12 monthly payments of $139.81 at 15% APR, $1,677.72 in total, and 3- or 6-payment plans at the same rate. Both colorways cost $1,549 and share the plan.
Limitations of this review
Twenty-four things this review cannot settle, set out so you can weigh them.
- We sell this bike. Give the red flags the same attention as the green.
- This review is specification-verified. Its figures come from Tesway's published documents, statutes, our own store record, the published research the range and fit sections cite, or arithmetic on this page.
- Each range figure describes a steady ride: one speed on one grade, with no wind and no stops. Stops, starts, headwinds and soft ground cost more, as the two riders' days in the formula section show.
- Bafang's figures stand in for Tesway's motor. Tesway gives the rated and peak figures and 100 N·m, and the documents read here do not say whether the hub is geared or direct drive; Tesway sells a motor gear clutch kit for the X7 PRO. At 82% efficiency instead of Bafang's 80% floor, the 16 mph throttle figure rises from 162 miles to 173.
- At light motor load the model has no measured check. Where your legs do more of the work than the motor, as in the steady-pedaling column at 16 mph, the answer rests on motor losses that no published hub-motor map could confirm.
- The unloaded speed is Tesway's 32 mph. If that figure is a controller's limit rather than the motor's own speed, and the motor turns at the comparable motor's 38.1 mph unloaded, the 16 mph throttle ride comes to 157 miles, the 20 mph ride to 120, and the 8% climb to 25 miles.
- The steep rows assume the controller delivers Tesway's full 2,000 W peak on a climb. Tesway publishes no controller current; a controller that delivers less holds a slower speed on a steep grade than the hills table shows.
- The two riders' days check the model loosely. Both were filmed about a year before this review, on units their riders describe as folding in their videos; neither ran the pack down, and bars are not an energy gauge. The record is in the range model's validation file.
- Every figure assumes Tesway's 3,120 Wh. The documents read here do not say how much of the pack the battery management releases; on one measured pedelec, researchers at KIT found 75% in use during a standard range test.
- The tire coefficient is the median of ten 26 × 4.00 fat tires at 12 psi, standing in for the 20 × 4.0 Kenda on the bike, and the tire table brackets it.
- The cold figures rest on one cell's laboratory data. Tesway's pages read here name no cell for the X7 PRO, so the central line uses McMaster University's measured LG HG2 cell, bracketed by other published cell data.
- Tesway prints two weights, 106 lb and 110 lb; the page plans on 110, and at 106 the 16 mph throttle ride gains about a mile.
- Tesway publishes two charge times, "About 10 hours" on the product page and 6 hours from empty in the manual; the page prints both and plans on the longer.
- Tesway's parts listings name two X7 PRO pack voltages. The bike on sale today is the 52 V build, by its SKUs, and the model uses 52 V; an owner of a 48 V unit should match the label on the pack.
- Tesway's documents differ on passengers. The product page promotes kid seats and ships a rear seat set, and the manual describes a bike for "a single person"; the page prints both and routes the question to Tesway in writing.
- The UL statement is Tesway's. The product page read here links no certificate, so no certificate number is printed.
- Tesway's factory-locked mode is described in one line. Its documents read here say the mode "complies with 250W and 25 km/h limits" and do not describe the lock further.
- Trail access is set locally. The land manager's rule decides, it can change, and neighboring systems differ.
- The recall search covers the CPSC's US database under the names listed; a recall filed under another company name would need that name searched.
- Colorways and prices were read on September 26, 2026, and both can change, as can Tesway's gift offer and our parts prices.
- The fit figures use the US Army's ANSUR II bodies: 6,068 soldiers aged 17 to 58, measured in 2010 to 2012, who are not the US public, so your own inseam decides your row.
- The cockpit is measured on Tesway's photograph. The crank, crank height, seatpost angle and grips are read at the 51.2-inch wheelbase scale, with four published lengths agreeing within 3.5%; Tesway publishes none of the four.
- The hand figure is a ceiling with a relaxed back. On a real ride your back and arms carry part of the load, and we found no study that measures hand load on a bike set up like this one.
- The 109% formula is a starting point. In 19 trained cyclists it put 55 to 65% inside the 25-to-35-degree knee range and the heel check 70%, so the knee range and the heel check should set the saddle.
The bottom line
At $1,549, the X7 PRO puts one rear hub motor, 100 N·m and a 3,120 Wh pack that lifts out on a step-over frame, with a 120 mm lockout fork, a coil shock, four-piston hydraulic brakes, seven Shimano gears and a long rack with a padded seat.
On flat pavement, the model gives a 180 lb rider about 162 miles holding 16 mph on the throttle, or 233 with light pedaling; every 1,000 feet of climbing at 10 mph costs 181 to 235 Wh on the throttle, and from 10% grades up, the pedals should help.
The right owner is an adult inside Tesway's 5'3" to 6'5" window, with an inseam under about 33.5 inches and a ground-floor place for a 110 lb bike, riding private land, gravel or wherever the state allows a machine rated above 750 W, who wants the X7's range for $250 less than the two-motor version.
On our listing's Shop Pay plan it is $139.81 a month for 12 months, at 15% APR.
Settle the class question before you pay: Tesway rates the motor at 1,000 W, and the 16 mph default answers the speed test only. Before you order, name the roads and trails you have in mind, and our reply will quote the rule for each.
Black and Blue both cost $1,549: this Black one, or Blue. Shop Pay spreads it over 12 months at $139.81 a month and 15% APR, free shipping covers the contiguous United States, and if the bike arrives damaged, the carrier claim is ours to file.
Buy your X7 PRO for $1,549Source register
What each document behind this review supports.
T1 is the record itself, read from whoever issued it: a statute, a federal regulation or notice, the maker's own product pages, record, drawing and manual, and our own store record.
T2 is a party's own publication about its product or its measurements: the motor maker's workbook, research groups' and laboratories' published measurements, and riders' recorded rides.
| Source | Tier | What it supports |
|---|---|---|
| Tesway, X7 PRO product page and product record | T1 (manufacturer, primary) | Every specification row, the range figures, the default and top speeds, the factory-lock line, the weights and payload, the FAQ, the UL statement, the brake, light, display, suspension and frame descriptions, the passenger lines, the gift offer, the owner reviews, the SKUs |
| Tesway, X7 PRO dimension drawing | T1 (manufacturer, primary) | The height window, seat range, standing height, handlebar height, lengths, weight and load capacity |
| Tesway, X5/X7 PRO manual | T1 (manufacturer, primary) | The rear-hub drive, assist levels, throttle, cruise, walk assist, charging, battery removal and keys, cycle life, range tips, the cold remedy, the single-person and children lines, the full power note, the error codes |
| Tesway, X7 AWD product page · charger listing · battery listing · Tesway EU About page | T1 / T2 (manufacturer) | The X7 AWD's figures in the comparison, the two pack voltages named for the X7 PRO, the parent name searched in the recall data |
| UL 2849 · UL 2271 | T1 (standards body) | The titles and scopes of the two standards Tesway names |
| Cal. Veh. Code § 312.5 · 15 U.S.C. § 2085 | T1 (legislature, GPO) | The definitions and class lines, quoted |
| 43 CFR 8340.0-5 · 43 CFR 8341.1 · 43 CFR 8340.0-7 · 36 CFR 261.13 · 87 FR 41278 | T1 (federal regulation and notice) | BLM and Forest Service rules for e-bikes and motorized vehicles, and the penalty |
| CPSC recall data | T1 (federal agency) | The recall search and its controls |
| Redtail eBikes shipping policy, refund policy, our X7 PRO listing, parts and accessories | T1 (first party) | Price, colorways, Shop Pay terms, shipping scope and times, the damage window, claim handling, change-of-mind terms, part prices and compatibility |
| Bafang workbook 2021 | T2 (motor maker, primary) | The comparable hub motor's speeds, rating, efficiency floor and torque |
| Martin et al., 1998 | T2 (own validation) | The cycling-power model, its worked example and chain efficiency |
| Bicycle Rolling Resistance (Kenda Juggernaut Pro, temperature test) · Rothhämel, 2023 | T2 (own published measurements) | Fat-tire rolling resistance and its change with temperature |
| Tengattini and Bigazzi, 2018 | T2 (own field measurements) | Drag areas, upright and mountain-bike |
| Arango, Lopez and Ceren, 2021 · Schmitt, Decker and Doppelbauer, 2019 | T2 (own measurements) | Battery efficiency; usable pack energy on a measured pedelec |
| McMaster HG2 data; Samsung sheets (25R, 30Q, 35E); Casado et al., 2025 · U.S. Standard Atmosphere, 1976 | T2 / T1 | Cell energy by temperature and its brackets; air density |
| Riders' recorded rides: Raspy Rides, a throttle-only delivery day and e-VRC, a cold pedal-assist ride | T2 (own recorded measurements) | The two rides set against the range model |
| US Army ANSUR II, 2012 | T1 (federal agency data) | The 6,068 bodies behind every fit figure |
| Peveler et al., 2005 · Peveler et al., 2007 · Ferrer-Roca et al., 2012 | T2 (peer-reviewed measurements) | The saddle formula, its published range, the knee target and the heel method |
| Priego Quesada et al., 2017 · Slane et al., 2011 · Carahalios, 2015 · Clauser et al., 1969 | T2 (own published measurements) | Comfort by trunk position, hand pressure, the measured load on the bars, and the segment weights |
Expiry conditions
Re-read this page if Tesway changes the X7 PRO's price, specification, motor rating, range figures, default speed, factory-lock wording, weights, payload, drawing or FAQ; if Tesway answers our written questions on passengers or the warranty for orders placed with us; or if the colorways, the price, the gift offer, the parts prices or the Shop Pay terms change on our store.
Re-read it as well if a recall is published naming Tesway or Tesgo. Verified September 26, 2026.
References
The full bibliographic record for each document cited above, with the date it was retrieved.
- TESWAY, X7 PRO — product page (X5/X7 PRO Specifications, Specifications detail block, highlights strip, feature sections, FAQs, customer reviews, gift banner, as rendered for the US market). Retrieved September 26, 2026. https://teswaybike.com/products/tesway-x7-pro
- TESWAY, X7 PRO — product record, variant prices, compare-at prices, SKUs and dates. Retrieved September 26, 2026. https://teswaybike.com/products/tesway-x7-pro.json
- TESWAY, X7 PRO — dimension drawing, on the product page's slideshow below the specifications (the same file on Tesway's UK store). Retrieved September 26, 2026. https://teswaybike.com/cdn/shop/files/X7-PRO-Dimensions_Mobile_669f60af-da90-4210-b0dd-2d85cbe301ac.webp?v=1790218601
- TESWAY, X5/X7 PRO Manual: Importance, Safety Check, Operating Your New E-bike, Maximizing the Riding Range, LCD Display, Care and Maintenance, Trouble Shooting. Retrieved September 26, 2026. https://cdn.shopify.com/s/files/1/0837/8318/8755/files/X5-X7_PRO_Manual.pdf?v=1747645003
- TESWAY, X7 AWD — product page, the X5/X7 AWD Specifications table and feature text. Retrieved September 26, 2026. https://teswaybike.com/products/tesway-x7-awd
- TESWAY, Battery Charger (compatibility by model and voltage). Retrieved September 26, 2026. https://teswaybike.com/products/tesway-battery-charger
- TESWAY, 48V/52V 60Ah Battery (compatibility by model). Retrieved September 26, 2026. https://teswaybike.com/products/tesway-52v-60ah-battery-suitable-for-x5-pro-x7-rro-ebike
- TESWAY Europe, About Us ("Tesway, a branch of Tesgo"). Retrieved September 26, 2026. https://eu.teswaybike.com/pages/about-us
- California Legislative Information, California Vehicle Code § 312.5, subdivisions (a) and (a)(3). Retrieved September 26, 2026. https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=VEH§ionNum=312.5.
- US Government Publishing Office, 15 U.S.C. § 2085 — Low-speed electric bicycles, subsection (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, 43 CFR § 8340.0-5 — Definitions, paragraphs (a) and (j) (85 FR 69223, Nov. 2, 2020). Retrieved September 26, 2026. https://www.ecfr.gov/current/title-43/subtitle-B/chapter-II/subchapter-H/part-8340/subpart-8340/section-8340.0-5
- Bureau of Land Management, 43 CFR § 8341.1 — Regulations governing use, paragraphs (a) and (d). Retrieved September 26, 2026. https://www.ecfr.gov/current/title-43/subtitle-B/chapter-II/subchapter-H/part-8340/subpart-8341/section-8341.1
- Bureau of Land Management, 43 CFR § 8340.0-7 — Penalties. Retrieved September 26, 2026. https://www.ecfr.gov/current/title-43/subtitle-B/chapter-II/subchapter-H/part-8340/subpart-8340/section-8340.0-7
- Forest Service, US Department of Agriculture, 36 CFR § 261.13 — Motor vehicle use. Retrieved September 26, 2026. https://www.ecfr.gov/current/title-36/chapter-II/subchapter-B/part-261/subpart-A/section-261.13
- US Forest Service, Directive Publication Notice, 87 FR 41278 (July 12, 2022), recording the final e-bike directives issued March 31, 2022. Retrieved September 26, 2026. https://www.federalregister.gov/documents/2022/07/12/2022-14777/directive-publication-notice
- US Consumer Product Safety Commission, Recall data, title, product-name and manufacturer queries for Tesway, TESWAY, Tesgo and teswaybike, a full-field read of a 623-record corpus including the model code X7, and controls Ancheer / Specialized / Trek. Retrieved September 26, 2026. https://www.saferproducts.gov/
- Redtail eBikes, Shipping policy (processing and transit times, contiguous US scope). Retrieved September 26, 2026. https://redtailebikes.com/policies/shipping-policy
- Redtail eBikes, Refund policy (48-hour damage window, change-of-mind and cancellation terms). Retrieved September 26, 2026. https://redtailebikes.com/policies/refund-policy
- Redtail eBikes, Tesway X7 PRO storefront record and Shop Pay terms (price, compare-at price, availability by colorway, repair terms, the gift offer, installment plans). Retrieved September 26, 2026. https://redtailebikes.com/products/tesway-x7-pro
- Redtail eBikes, Tesway parts and accessories listings: Brake Pads, Battery Charger, E-bike Controller, Headlight, Kickstand, Seat Post, NFC Card, Battery Lock Cylinder, Fat Tire, Inner Tube 20" × 4.0", 7 Speed Chain, Rear Shock Absorber, Front Basket, Large Rear Rack Basket, Foldable Rear Platform, Seat Cushion, Cargo Trailer (compatibility, price, availability). Retrieved September 26, 2026. https://redtailebikes.com/collections/tesway-parts
- BAFANG, Workbook OEM 2021, MOTORS table, RM G0H0 column: n0, nT, rated power, efficiency, maximum torque at 48 V. Retrieved September 23, 2026. https://www.bafang-e.com/Uploaded/Labels/BAFANG%20Workbook%20OEM%202021.pdf
- Martin, J. C., Milliken, D. L., Cobb, J. E., McFadden, K. L. and Coggan, A. R., Validation of a Mathematical Model for Road Cycling Power, Journal of Applied Biomechanics 14(3):276–291 (1998), Eq. 14 and Appendix I; doi 10.1123/jab.14.3.276. Retrieved September 23, 2026. https://collections.lib.utah.edu/dl_files/b4/8e/b48ef26086091662c561e673d7bd990d77868437.pdf
- Bierman, J., Fat Bike Tires Test Results, BicycleRollingResistance.com, rolling resistance at 12 psi, 28.8 km/h, 42.5 kg. Retrieved September 25, 2026. https://www.bicyclerollingresistance.com/fat-bike-reviews
- Bierman, J., Kenda Juggernaut Pro 2016, BicycleRollingResistance.com, rolling-resistance results. Retrieved September 25, 2026. https://www.bicyclerollingresistance.com/fat-bike-reviews/kenda-juggernaut-pro-2016
- Bierman, J., CRR at Different Temperatures: Examining Temperature Dependence of Rolling Resistance, BicycleRollingResistance.com. Retrieved September 23, 2026. https://www.bicyclerollingresistance.com/specials/crr-temperature-test
- Rothhämel, M., On rolling resistance of bicycle tyres with ambient temperature in focus, International Journal of Vehicle Systems Modelling and Testing 17:67–80 (2023); doi 10.1504/IJVSMT.2023.132317. Retrieved September 23, 2026. https://www.inderscience.com/filter.php?aid=132317
- Tengattini, S. and Bigazzi, A. Y., Physical characteristics and resistance parameters of typical urban cyclists, Journal of Sports Sciences 36(20):2383–2391 (2018), Table 4; doi 10.1080/02640414.2018.1458587. 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. and Ceren, A., Improving the Autonomy of a Mid-Drive Motor Electric Bicycle Based on System Efficiency Maps and Its Performance, World Electric Vehicle Journal 12(2):59 (2021), Eq. (40); doi 10.3390/wevj12020059. Retrieved September 23, 2026. https://mdpi-res.com/d_attachment/wevj/wevj-12-00059/article_deploy/wevj-12-00059.pdf
- Schmitt, M., Decker, S. and Doppelbauer, M., Measuring and Characterization of a Pedal Electric Cycle (Pedelec) on a Full System Test-Bench with Full Range Emulation of a Cyclist, EPE'19 ECCE Europe (IEEE, 2019); doi 10.23919/EPE.2019.8915567. Retrieved September 23, 2026. https://publikationen.bibliothek.kit.edu/1000100371/50695920
- Kollmeyer, P. et al., LG 18650HG2 Li-ion Battery Data, Mendeley Data v2, McMaster University; doi 10.17632/b5mj79w5w9.2 (0.5C discharge files, recomputed). Retrieved September 23, 2026. https://doi.org/10.17632/b5mj79w5w9.2
- Samsung SDI, Specification of Product INR18650-25R, § 7.6 Temperature dependence of discharge capacity. Retrieved September 23, 2026. https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/196/4628.130109_5F00_INR18650_2D00_25R-Cell-SPEC-_2800_3_2900_-_2800_1_2900_.pdf
- Samsung SDI, Specification of Product INR18650-30Q, discharge characteristics by temperature. Retrieved September 23, 2026. https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/196/INR18650_2D00_30Q_5F00_datasheet.PDF
- Samsung SDI, Technical Information INR18650-35E, discharge by temperature. Retrieved September 23, 2026. https://enerpower.de/wp/wp-content/uploads/2016/03/Technical_Information_INR18650-35E.pdf
- Casado, C. et al., Temperature-dependent capacity of lithium-ion cells, Journal of Power Sources (2025); doi 10.1016/j.jpowsour.2025.236552. Retrieved September 23, 2026. https://doi.org/10.1016/j.jpowsour.2025.236552
- NOAA, NASA and USAF, U.S. Standard Atmosphere, 1976 (NOAA-S/T 76-1562). Retrieved September 23, 2026. https://ntrs.nasa.gov/api/citations/19770009539/downloads/19770009539.pdf
- Raspy Rides, Using The Longest Range Foldable E-Bike for DoorDash and UberEats | Tesway X7 Pro Range Test (YouTube), transcript read. Retrieved September 26, 2026. https://www.youtube.com/watch?v=Udod62sMqSI
- e-VRC, The Biggest Ebike Battery I've Seen got me LOST - MILES AWAY FROM HOME! Tesway X7 Pro (YouTube), transcript read. Retrieved September 26, 2026. https://www.youtube.com/watch?v=S6wU_4XiAfo
- US Army, For good measure: Natick releases raw data from Army-wide anthropometric survey (ANSUR II, 2012). Retrieved September 25, 2026. https://www.army.mil/article/188601/for_good_measure_natick_releases_raw_data_from_army_wide_anthropometric_survey
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