Samebike CY20 Pro Spoked Wheel Review: 624 Wh, $599

A 20-inch folder with spoked wheels · a 48 V 13 Ah pack of 624 Wh · one 500 W rear hub, 800 W at peak · "55+Nm" · a front fork, mechanical discs and Shimano 7-speed on 20 × 3.0 tires · folds to 34.6 × 19.3 × 33.5 inches · $599 · verified September 29, 2026

Quick Answer — The Samebike CY20 Pro Spoked Wheel is a $599 20-inch folder: a 500 W rear hub (800 W peak), a removable 48 V 13 Ah pack of 624 Wh, spoked wheels on 20 × 3.0 tires and a front fork. For a 180 lb rider on level pavement, our model computes 39 miles at 15 mph on the throttle.

Add easy pedaling at 75 W and the same charge reaches 61 miles by that model; Samebike's specification table lists 100 km (62 miles) as its maximum. The step-through frame's lowest edge stands 15.2 inches up, and the saddle table puts the post at the formula height for 96 to 99 of every 100 riders from 5'4" to 5'8".

What this review covers

The specification · Spoked or Solid Wheel · Fit · Motor · Battery · Range · Brakes, display and app · Fork, saddle and tires · The fold · 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 CY20 Pro Spoked Wheel review

Every Spoked Wheel figure on this page was read on September 29, 2026 from Samebike's US product page (its specification table, stat strip, feature panels, size list, drawing, gallery and FAQ), from the product record, from the Spoked Wheel user manual and from our listing. The range and fit figures are computed from those inputs, and each section says where its numbers come from.

We held each figure against what Samebike publishes and either recomputed it or cited it in place, so the review is specification-verified. We sell the Spoked Wheel, so read its red flags with the same care as its green ones.

Written by Milad Ghobadibeygvand, BScN (Western University, 2014). Corrections: support@redtailebikes.com.

What Samebike publishes for the Spoked Wheel

Every row comes from Samebike's Spoked Wheel page, read September 29, 2026, and from the Spoked Wheel manual's specification page. Where two Samebike documents disagree, the row prints both, the section that leans on the figure names the one it uses, and Limitations item 18 gathers every pair.

Spoked Wheel or Solid Wheel: what the $599 changes

Samebike sells the CY20 Pro in two wheel types at the same $599, and the Spoked Wheel carries the bigger pack. Both fold in the middle, ride on 20 × 3.0 tires and share one listed size, weight and load; the Spoked Wheel pairs wire-spoked wheels with a 48 V pack of 624 Wh, where the Solid Wheel pairs cast wheels with a 36 V pack of 468 Wh.

Gallery image 16 on Samebike's Spoked Wheel page: the folded bike going into a car's trunk. The frame is Black, one of the two colors on our listing.

Samebike's US pages and manuals for each model, read September 26 and 29, 2026; the last two rows come from the range models in this review and our Solid Wheel review, each for a 180 lb rider on level pavement.

Samebike's own European page calls this one the current generation. Its CY20 Pro page reads "Currently Available Generation: Spoke Wheels, 48V 13Ah Power Battery, Smart App Control" above "Previous Discontinued Generation: One-Piece Wheels, 36V 13Ah Power Battery" (Samebike EU). The US store still sells both, and so do we.

Pick the Spoked Wheel for the miles and the Solid Wheel for a Navy frame or the cast wheels; the fit, the fold and the motor are the same on both, and our Solid Wheel review covers that one in full.

Will the CY20 Pro Spoked Wheel fit you?

Stepping through is easy for everyone from 4'11" up, and the saddle suits riders of about 5'2" to 5'10" best.

The frame's lowest point is 15.2 inches off the ground, which leaves even the shortest-legged rider in twenty at 4'11" 11.6 inches of room, and the post, whose saddle top runs from 35.7 to 41.8 inches, reaches the formula height for 99 of every 100 riders at 5'4", 96 at 5'8" and 75 at 5'10".

These shares come from all 6,068 bodies in the US Army's 2012 anthropometric survey, each set against the bike in Samebike's size-and-fit photograph. To read your own row:

1. Take your barefoot inseam against a wall, with a hardcover book pressed up between your legs where a saddle would sit; the book's top edge, measured from the floor, is your number.
2. Look up your height in the saddle table and check that your inseam sits in its typical band.
3. Then read the step-over table and the lean table on the same row.

Samebike prints two rider-height windows: 4'9" to 6'9" on gallery image 18, and 150 to 210 cm (about 4'11" to 6'11") on the size-and-fit drawing. The tables below read riders from 4'11" to 6'2" against the bike, and this table sets Samebike's printed dimensions beside what the photograph measures:

The measurements come from the Solid Wheel page's photograph of the same frame. Samebike lists identical dimensions for both wheel types, and that photograph matches four of its five listed dimensions within 3.5%; the Spoked Wheel's own photograph, shown below, matches two (the formula subsection prints both sets).

The size-and-fit photograph on Samebike's Spoked Wheel page, with its 150–210 cm window, 31 kg weight and 150 kg load; its listed length and lowest seat height measure within 1.6 percent on it at the 1,135 mm wheelbase.

Will the saddle sit at the right height for me?

Yes for most riders from 5'2" to 5'10": the formula height falls inside the post's range for 79 of 100 at 5'2", 99 at 5'4" and 5'6", 96 at 5'8" and 75 at 5'10".

Above that the post runs out of reach: its highest drawn saddle top, 41.8 inches up, is below the formula height for 70 of 100 riders at 6'0" and 94 of 100 at 6'2". At the short end, the lowest setting sits above the formula height for 59 of 100 riders at 5'0".

The formula sets the saddle top at 109% of inseam above the pedal axle, the height Peveler et al., 2005 checked against knee angle; the well-trained cyclists in Ferrer-Roca et al., 2012 rode as low as 106%. On the photograph the crank axle is 12.3 inches up, each crank arm runs about 178 mm, and the post leans back at 76 degrees.

How many riders per 100 at each height have a formula saddle height, at 109% and at the 106% low end, inside the post's reach, beside the median rider's 109% height above the ground; men and women pooled. The post runs from 35.7 to 41.8 inches to the saddle top, the two settings in the photograph.

Why the formula height matters: there, the knee bends 25 to 35 degrees with the pedal at its lowest point (Peveler et al., 2007). A saddle below it leaves the knee more bent through every stroke, which is where the post leaves riders over about 5'10": at 6'0" those it cannot reach sit a median of about 0.9 inch low, and at 6'2" about 1.8.

Over 5'10" and set on a folder? Our LO26 Plus review finds its post at the formula height for 91 of 100 riders at 5'10" and 56 at 6'0", on 26-inch wheels.

Can I step through it at a stop?

Yes, at every height from 4'11": the frame's lowest edge is 15.2 inches off the ground, and the shortest-legged rider in twenty at 4'11" clears it by 11.6 inches barefoot. The margin reaches 16.0 inches at 5'8" and 19.2 at 6'2".

Barefoot clearance over the frame's lowest edge for the rider with the shortest inseam in twenty at each height; the inseam column is the median rider's, and shoes add to every figure.

Mount it by stepping through the dip in the frame: stand beside the bike, put one foot over the low point by the folding hinge and sit back onto the saddle; at a stop, slide forward and put both feet down with the frame between your shins.

The 15.2 inches is read where the frame's top edge runs lowest, just ahead of the hinge, on Samebike's photograph of the Solid Wheel, which carries the same frame; on the Spoked Wheel's own photograph the same point reads 14.7.

Will I feel cramped, or stretched?

Neither, for most: you sit close to upright, with the median rider leaning 5 to 11 degrees from vertical at every height from 4'11" to 6'2". On the photograph the grips stand 29.8 to 33.0 inches above the crank axle and 12.3 to 14.8 inches ahead of it.

Asked to try three trunk angles, the twenty recreational cyclists in Priego Quesada et al., 2017 rated the most upright the most comfortable. The lean below is the least tilt from the sit bones that lets a straight arm meet the grip, worked out body by body from each surveyed rider's torso and arm lengths.

The median lean with the bar at its drawn setting; the range covers every place on the saddle and every point along the grip.

The handlebar adjusts, and Samebike prints its range. The specification table calls the handlebar "Adjustable", the size list gives a total height of 1065 to 1220 mm, and gallery image 18 labels the same span "Handlebar Height"; the two drawn settings read 43.7 and 48.0 inches at their grip centers, and the table uses the lower.

For an even more upright seat, the M20 review's reach table puts its median 5'8" rider 4 degrees off vertical on a long bench.

How much weight goes through my wrists?

Not much: with the back relaxed and the bar as drawn, the median rider rests 8 to 14 percent of body weight on the grips, about 5 to 14 pounds a hand from 4'11" to 6'2". In a laboratory study, ten road racers on their brake hoods put 15% of their weight through the bars (Carahalios, 2015), so the CY20 Pro's upright bar asks less of the hands than a road bike.

Slane et al., 2011 measured 36 riders and found pressure over the ulnar nerve, where it crosses the palm, highest in the longest and most leaned position.

An upper bound, with the back fully relaxed and the bar where Samebike draws it, from each body's segment weights (Clauser et al., 1969) and the survey's median weight at each height; the bracket spans every saddle position and grip point.

How do I set it up when it arrives?

The manual's assembly chapter covers eight jobs: the handlebar riser, the basket and front headlight, the rear saddle, the fenders, the saddle, the pedals, the rear footrest and the front wheel. The Spoked Wheel manual shows each in pictures: swing the riser up and lock its buckle, then tighten the folding-buckle nut before closing the buckle the way its arrow points.

The front wheel drops into the fork with the rotor between the caliper pads and closes with a quick-release clamp, and the pedals and cranks carry matching L and R marks, the right one tightened clockwise and the left counterclockwise, per the manual, which warns that a pedal fitted upside down damages the thread.

Set the saddle height, then check it with your heel. Loosen the post's folding buckle, slide the seat tube to height and lock the buckle again, per the manual's saddle step; with your heel on the pedal at its lowest point your leg should be straight, and for the 19 cyclists in Peveler et al., 2005 that heel check put the knee within 25 to 35 degrees 70% of the time.

Samebike's feature photograph beside its 20 × 3.0 tire panel: the whole bike, drive side, on its spoked wheels.

To switch it on, the manual has you turn the battery key under the frame until it lies parallel to the battery, then hold the display's power button; turned across the battery, the key means off. The box holds the charger, three wrenches, five Allen keys and a screwdriver.

How we computed fit

Four calculations stand behind this section: the formula saddle height, 1.09 × inseam above the pedal axle, set against the post's range; step-over clearance, barefoot inseam minus the frame's lowest edge; lean, the least trunk tilt that lets a straight arm reach the grip; and hand load, the upper body's weight set against where the grips sit.

Follow one rider through it: at 5'8" the median barefoot inseam is 32.6 inches, and 109% of it is 35.6 inches from the pedal, or 28.6 from the crank axle along the post (88.3% of inseam gives 28.8). That puts the saddle top 39.9 inches off the ground, inside the post's 35.7 to 41.8.

Before a measurement was taken, the photograph was held against Samebike's own listed dimensions:

The Solid Wheel page's photograph at Samebike's published 1,135 mm wheelbase, the scale set between axle centers found by fitting a circle to each tire: four of the five listed dimensions agree within 3.5%, the seat heights at the clamp as on Samebike's other drawings, so the model reads the saddle top as drawn.

The Spoked Wheel's own photograph, measured the same way, reads the total length at +1.6% and the lowest seat height at the clamp at −0.8%, but the highest seat height at −3.8% and the two handlebar heights at +3.7% and +4.3%: its ghosted saddle rises about 130 mm where the list gives 160.

Two controls inside 3.5% is too few to scale a fit model on, so the model uses the Solid Wheel's photograph of the same frame, and Limitations item 11 carries both readings.

The motor: 500 W at the rear hub, 800 W at peak

Samebike's specification table rates the rear hub at 500 W with an 800 W peak, and its "Max-Throttle Power" panel reads: "800W peak motor climbs steep hills and cuts through loose terrain with steady, ready power whenever you need it."

The title line adds "55+Nm", and the thumb-throttle panel says the throttle "provides full electric drive, delivering 55+Nm of power". The range model caps the motor at 55 N·m, the floor of that figure, so the hill tables lean cautious.

Samebike's "Shimano 7-Speed Gearing" photograph: the hub motor sits inside the spoked rear wheel, with the freewheel and derailleur beside it.

Throttle, pedal assist, or both at once. The display offers five assist levels, and two feature panels name 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 pairs the pack with "a torque sensor and high-torque motor".

The seven gears are for your legs. A hub motor turns with the wheel in whatever gear you pick, so the battery's draw changes only with the watts you add, and the gear table prices each effort.

The right-hand controls from Samebike's "Thumb throttle" photograph: the Shimano 7-speed shifter above the throttle paddle.

The battery: 48 V × 13 Ah = 624 Wh

48 volts times 13 amp-hours is 624 watt-hours, the energy every range figure below divides. Gallery image 19 calls it a "48V 13AH LITHIUM-ION BATTERY" and an "Upgraded 624Wh Large Capacity" pack, and the range panel describes a "624Wh LG battery with smart BMS".

The pack stands behind the seat tube, under the saddle, and the manual frees it in three moves: press the saddle's buckle and flip the saddle, press the keyhole and turn the key to open the battery lock, then lift the pack out. It charges on the bike or indoors, and the charger's light shows red while it charges.

Samebike prints two charge times for this pack. The specification table says 4 to 6 hours; the charger panel ("fully recharges in about 6-8 hours"), gallery image 19 and the manual say 6 to 8. The manual rates the charger at 54.6 V and 2 A, and 13 Ah at 2 A is 6.5 hours by simple division, inside the longer figure.

Divide 624 Wh by each of Samebike's range figures and you get the watt-hours per mile that figure allows:

624 Wh over each printed distance gives the row; the range section matches every one to a steady ride.

How far the CY20 Pro Spoked Wheel goes on one charge

On level pavement with a 180 lb rider, a full pack gives about 39 miles at 15 mph on the throttle, 31 at 18 mph, and 61 at 15 mph with easy pedaling. Climb a 4% grade at 10 mph on the throttle and it lasts about 15 miles.

Price your own ride in three steps:

1. Find your usual speed and pedaling effort in the first two tables.
2. For each 1,000 feet of climbing, add the 139 to 169 Wh that the hill table charges the throttle at 10 mph.
3. Adjust for your weight and the temperature, then plan on three-quarters of what you get.

Every number here comes from one steady-state calculation 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 road riders; the formula subsection walks one mile through it.

Does riding faster cut range? Miles at each speed

Yes, and quickly. At 10 mph on the throttle a full charge runs 55 miles; at 18 mph it runs 31, because the air's share of the work grows with the cube of your speed.

Throttle only, level pavement, 77 °F air, 180 lb on a bike of 68.3 lb, Samebike's own 31 kg. The table stops at 18 mph, the fastest the modeled motor holds on the flat; its unloaded speed is Samebike's listed 32 km/h (19.9 mph). The last column holds back a quarter of the pack, the share one pedelec kept in reserve in a standard laboratory range test (Schmitt, Decker and Doppelbauer, 2019).

Your pedaling moves the number most: 75 W at 15 mph takes a full charge from 39 miles to 61. Easy means 75 W here and steady means 150 W; with the motor off, those efforts alone would carry this bike across flat ground at about 9.1 and 13.2 mph, a quick way to tell which column is yours.

Full-pack miles on level pavement with 180 lb aboard. At 15 mph, easy pedaling leaves the pack 10.2 Wh a mile to cover, against 16.1 on the throttle alone. The 134-mile cell rests most on your own steady output and on the motor's losses at light load, the model's least certain input (Limitations item 4).

Whichever assist level you set, this model reads your distance from two things, the speed you hold and the watts you put in, so find the row closest to how you ride.

Which gear saves battery?

Shift for your knees, since only your pedaling spares the pack. The rear hub spins with the wheel in all seven gears, so the battery's draw changes only with the power you add:

Watt-hours per mile from the battery with a 180 lb rider; a dash marks a ride the modeled motor cannot hold on its own at that speed.

Gears help on a climb in a roundabout way: 150 W from your legs at 12 mph on a 4% grade cuts the battery's bill from 41.9 Wh a mile to 22.9, and on an 8% grade at 12 mph the motor needs that help to hold the speed at all, which only a low gear lets you give.

Does going uphill drain the battery faster?

A great deal faster: on the throttle at 10 mph, every 1,000 feet of climbing on a 4 to 8% grade costs 139 to 169 Wh more than the same miles on the flat. Raising 248.3 lb of rider and bike through 1,000 feet takes about 94 Wh at the wheel, and the motor's and the pack's losses account for the rest.

Each 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 ends at 8% because on a 10% grade the modeled motor, capped at the 55 N·m floor of Samebike's "55+Nm", would drop below 10 mph (Limitations item 6); the manual lists a 25-degree maximum climb.

Price a hilly commute in two parts and add them. Ten flat miles at 15 mph with a 500-foot climb at 6% come to about 161 Wh plus about 76, or some 237 of the pack's 624; the model holds one steady speed, so traffic stops and headwinds add to it.

Does rider weight affect range?

Only a little on the flat, and more as the road tilts. Added pounds load the tires and the climb but not the air, so they matter more the steeper you go.

Rider and cargo together, carried by the 68.3 lb bike on the throttle alone. The bottom row is 330 lb, the maximum load on Samebike's specification table and in the manual. "Past the model's motor" marks a speed or climb the modeled motor cannot hold with that load, where your pedaling would have to help.

Going from 180 lb to 330 lb shortens the 15 mph level ride from 39 miles to 31, and from 220 lb up, 18 mph on the flat and 10 mph on an 8% climb both need some pedaling in this model.

Does cold weather drain the battery?

Yes: at freezing the 15 mph throttle ride drops from 39 miles to about 31, and at 14 °F to about 28.

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; the brackets carry the spread of other published cell tests, which widens below freezing (Limitations item 9).

Cold works on three fronts at once. At 32 °F the pack gives about 89% of its 77 °F energy, and the air grows about 9% denser, by the gas law behind the U.S. Standard Atmosphere.

The tires firm up as well: each degree Celsius of cooling adds about 0.9% to rolling resistance in the model, a rate between Rothhämel's fit for a 42 mm tire and the road-tire average in Bicycle Rolling Resistance's temperature test, held level below 41 °F.

Do the tires cut range?

By about 9 miles across the plausible spread at 15 mph: 36 on the stickiest of ten measured fat tires, 45 on the freest-rolling. No drum test covers a 20 × 3.0 tire, so the model borrows Bicycle Rolling Resistance's ten 26 × 4.00 fat tires at 12 psi, 23.2 to 42.1 W on its drum, and uses their median.

Full-pack miles for 180 lb on the throttle over level pavement; the dash marks 18 mph, which the modeled motor cannot hold on the stickiest tire. Kenda's Juggernaut Pro needed the most power of the ten and Schwalbe's Jumbo Jim LiteSkin the least (Limitations item 8).

On pressure, the manual sends you to the tire itself, "According to the actual information on the tire", and the page's "Anti-Puncture" panel prints a range ending "40-65PS"; check the sidewall and pump to it, because a soft tire costs miles.

Posture counts for more as speed rises. Tengattini and Bigazzi measured roadside drag areas of 0.640 m² for 37 upright cruiser riders (used here) and 0.603 m² for 90 everyday mountain-bike riders; tucking in like the second group adds about 1.4 miles at 15 mph (38.7 to 40.1 before rounding).

Samebike's 100 km and 62 miles, turned into rides

Samebike prints eight range figures for the Spoked Wheel across its page, gallery and manual, and each one matches a different steady ride, or none on the flat. Its range panel ties the 62 miles to "Mode 1, Level1 pedalassist", and its battery panel ties the 100 km to "mild electric mode".

• 100 km (62 miles), the specification table's "Max Range", and the range panel's "up to 62 miles", allow 10.0 to 10.1 Wh a mile: easy pedaling at about 15.0 mph, steady pedaling at 18, or the throttle alone at about 8.2 mph.
• The manual's 37 to 43 pedal-assist miles need 14.5 to 16.9 Wh a mile, a steady 13.6 to 15.7 mph on the throttle, or easy pedaling near 17.7 mph for the 43.
• The battery panel's low end, 55 km (34 miles), needs 18.3 Wh a mile, about 16.7 mph on the throttle.
• The stat strip's low end and gallery image 19, 50 km (31 miles), need 20.1 Wh a mile, the throttle at 18 mph.
• The manual's 18 to 22 pure-electric miles need 28.4 to 34.7 Wh a mile, more than any steady ride on level ground this model's motor can hold; climbs, stops, wind or a heavier load would use that much.

The manual lists the same 37–43 and 18–22 miles as the Solid Wheel's manual, whose pack is 468 Wh, and names no speed or load behind them; the product page's figures are the ones written for this pack.

Plan on three-quarters of any full-charge figure. On a full-system test bench one pedelec delivered 75% of its rated energy and held the rest back (Schmitt, Decker and Doppelbauer, 2019); treat the 39-mile throttle ride at 15 mph that way and it becomes a 29-mile plan.

The formula behind every range figure

A steady speed needs steady power at the rear wheel, and Martin and colleagues (1998) wrote that power, in still air, as one equation they then checked against riders on an open road:

The power the rear wheel must deliver: P = v × [ m·g·(Crr·cos θ + sin θ) + ½·ρ·CdA·v² ]

Here v is speed; m is rider, cargo and bike together, g is gravity and θ the slope; Crr is the tires' rolling resistance, 0.0105 meaning a drag of 1.05% of the weight they carry; ρ is the density of the air; and CdA is the drag area, the size of the hole a rider punches through the air.

From the wheel back to the battery the power passes through four stages:

1. Your legs push through a chain Martin and colleagues measured at 97.7% efficiency, and the motor supplies the rest.
2. The motor borrows its shape from a comparable hub with published data: Bafang's 2021 OEM workbook gives the RM G0H0 geared hub 510 rpm with no load and 426 rpm at its rated point, where its efficiency is at least 80%. The model rescales that curve to the Spoked Wheel's 48 V and 500 W, sets its unloaded speed at Samebike's 32 km/h (19.9 mph), and caps torque at 55 N·m.
3. The pack loses a few percent as heat inside its cells, a loss Arango, Lopez and Ceren measured on a 48 V e-bike battery.
4. Watt-hours per mile come from dividing the battery's output in watts by the speed in mph, and the miles from dividing the 624 Wh, temperature-corrected, by that figure.

A single mile, worked through: 15 mph on the throttle over level pavement with 180 lb aboard. Rolling resistance takes 78.1 W and the air 114.2 W, so the wheel needs 192.3 W.

At that speed the 21.53-inch wheel turns 234 rpm. Rebased from Bafang's data to 48 V and 500 W, the model's motor makes 1.477 N·m of torque per amp, with 0.607 Ω in its windings and 0.55 A of no-load current, so the 7.84 N·m the wheel asks for draws 5.86 A at 82.5% motor efficiency.

With the pack's own losses added, the cells supply 241.60 W, or 16.11 Wh a mile at 15 mph: 624 ÷ 16.11 gives 38.7 miles, and 29.1 with a quarter held back.

How the model was checked. Each link reproduces a figure its own source published:

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 Samebike's lower printed range for the whole chain, which names no speed.

None of the documents read for this review records a Spoked Wheel ridden to an empty pack with its speed and load written down, and Limitations item 5 sets out what that leaves open.

Brakes, display, app and lights

Mechanical discs at both wheels, each caliper pulled by a cable. Samebike's specification table lists "Mechanical disc brakes", its brake panel says they "provide reliable stopping power for your bike with less maintenance", and the front rotor on gallery image 20 is stamped 160.

The rear caliper and rotor from Samebike's "Mechanical disc brakes" photograph, the cable running into the caliper from above.

The display in the manual shows speed, the assist level, a five-segment battery gauge worth 20% each, and trip or total distance, and it lights icons for Bluetooth, boost, cruise and a lock. Holding "−" at a standstill starts the 6 km/h push mode for walking the bike, and holding it while moving sets cruise.

The display pairs with Samebike's phone app. The manual says the panel "is equipped with an App Bluetooth module" that "can control vehicle functions and status through the App", and gallery image 15 lists what the app does: locking and settings, locating the bike, and "Track speed, battery level, and mileage".

Samebike's "Colorful display" photograph; the specification table calls it an LCD.

The app's own steps, per the manual: scan the code or download SAMEBIKE from Google Play or the App Store, register or skip, turn on your phone's Bluetooth, then tap "Add" to connect the bike.

Lights and a horn come built in. The manual's overall view shows a headlight at the front and taillights at the back, its display section switches the headlight with a long press of "+", and its specification lists an "Electric Horn Installed"; Limitations item 13 sets the USB entries side by side.

Front fork, saddle and 20 × 3.0 tires

The suspension is a front fork, and the saddle does the cushioning at the back. The specification table lists "Suspension: Front fork", a feature panel gives "Travel Approximately 80 mm", and gallery image 17, headed "DOUBIE SUSPENSION SYSTEMS", pairs "The suspension front fork" with a "Comfortable saddle"; the stat strip reads "DUAL Suspension".

The "Ergonomic Saddle", which Samebike calls "A comfortable design specially made for pressure relief".

The tires are 20 × 3.0 on the specification table, and the page calls them "Thickened and widened", "more resistant to punctures", with "fluorescent reflective strips" along their edges; its "All-terrain Tires" panel lists "City Road,Soil Road,Snow Road,Sand Road".

Spokes are what the name buys. Each wheel is laced from individual wire spokes, as Samebike's close-ups of the hub and rotor show; if you ever need a spoke or a whole wheel, email us your order number and we will confirm the part fits before you buy it.

The fold: 34.6 × 19.3 × 33.5 inches

Folded, the Spoked Wheel measures 880 × 490 × 850 mm, or 34.6 × 19.3 × 33.5 inches, without the front basket. Samebike's FAQ says it "can be folded and stored in the trunk of a car", and gallery image 22 shows the fold in "3 steps".

Samebike's "Foldable design" photograph: the front half swings back beside the rear wheel and the handlebar folds down beside it.

The manual's folding steps run: fold the handlebar down, open the frame's folding buckle, and swing the front half back until the bike closes. The same buckle method, it says, "are applicable to all folding clasps throughout the ebike", so the riser and the post release the same way.

A padded rear cushion and footrests come in the box. Samebike calls the padded rack top an "Extended rear seat cushion", "Lengthened and thickened for greater comfort", and the manual's assembly adds a "rear saddle" and a rear footrest; its first warning lists "carrying people or anything" among the things that use more energy.

The padded rear cushion, which Samebike says it lengthened and thickened, above the taillight.

68 pounds, a 330-pound capacity and the box

Samebike prints the same weight in three places: 31 kg (68.3 lb) on the specification table, "68.3LBS" on gallery image 18 and 68 lb (31 kg) in the manual. The range model uses 68.3 lb.

Its load figure agrees everywhere too: 150 kg (330 lb) on the specification table and stat strip, "MAX 330LBS" on gallery image 18, and 330 lb (150 kg) in the manual. A 200 lb rider with 30 lb in the basket and on the rack is 230 lb, well inside it.

The box measures 1420 × 230 × 645 mm (55.9 × 9.1 × 25.4 inches) and weighs 81.5 lb (37 kg) per the manual, so line up a second pair of hands for the doorstep.

The Mercer fit test

Our seven Mercers (meet the Mercers) are archetype riders standing in for the people we sell to, and each row seats one of them on the Spoked Wheel, reading Samebike's published height windows, seat range and load figures through the fit tables.

Every adult Mercer stands inside Samebike's two windows, 4'9" to 6'9" and 150 to 210 cm; the last column shows what the fit tables compute for each height beside them.

Jack and Frank show where the Spoked Wheel runs short. Both stand well inside Samebike's windows, but the post's highest saddle top, 41.8 inches, falls short of the formula height for 87 of 100 riders at 6'1"; that saddle is the one fit question for tall riders to settle before ordering, and the saddle table answers it from your inseam.

Is it UL certified?

Samebike's studio photographs of the Spoked Wheel carry a TÜV SÜD badge reading "UL 2849", and the manual closes with "EPAC EN 15194". UL 2849 is the standard UL Solutions certifies e-bikes to, testing the electrical drive train, battery and charger together.

Need the certificate itself for a landlord, a building manager or an insurer? Ask us before the bike ships and we will request the Spoked Wheel's certification record from Samebike in writing.

Has it been recalled?

No. On September 29, 2026, the CPSC's recall database returned nothing for Samebike, Same bike, Samebikes, Sameway or Guangzhou Sameway in its recall titles, product names or manufacturers, while known recalls from three other brands came back as controls. None of the 623 bicycle, e-bike, battery and scooter recalls saved on September 25 names a CY20.

The CPSC's site search, which also holds its consumer warnings, gave "No Results." for Samebike and for Sameway that day, while a brand with warnings on file brought them up.

Which class? Your state weighs 500 W and 32 km/h

Samebike's US page gives the Spoked Wheel no class, so your state's law decides what it is. Those definitions test three things Samebike publishes: a 500 W rated motor with an 800 W peak, 32 km/h (19.9 mph) on the specification table and stat strip, and a throttle that moves the bike without pedaling.

At the federal level, 15 U.S.C. § 2085 puts low-speed electric bicycles under the CPSC's bicycle rules, and its subsection (b) defines one as "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."

Read September 29, 2026: 15 U.S.C. § 2085, Samebike's Spoked Wheel page and the Spoked Wheel manual.

Where your state's wording turns on watts or speed, write to us before you order, 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 our 50-state e-bike law atlas prints each state's definition.

Where you can ride it

A trail signed for class 1 e-bikes only is closed to the Spoked Wheel, since it has a throttle. Under 43 CFR 8340.0-5(j)(1), a class 1 motor "provides assistance only when the rider is pedaling"; past that, each land manager writes its own rule.

On Bureau of Land Management ground, 43 CFR 8340.0-5 builds three classes on a motor "of not more than 750 watts (1 h.p.)", and whether e-bikes may use an area is the authorized officer's written decision.

Four places to ride, four authorities, and none of them rules by the spec sheet.

On a National Forest trail the motor vehicle use map rules, and riding a trail it closes to motor vehicles breaks a federal rule with a penalty attached. 36 CFR 261.2 counts "any vehicle which is self-propelled" as a motor vehicle, and 36 CFR 261.1b sets "imprisonment of not more than six months", a fine under 18 U.S.C. 3571, or both, for breaking a Part 261 rule; get the district's map first.

Samebike's FAQ pitches the CY20 Pro for "city riding and commuting", and our public-land guide sets out each federal land agency's e-bike rules for the days you take it further.

Green flags / Red flags

Green flags

• $599 on our listing, matching Samebike's US store on September 29, 2026, where the Black shows $899 as its regular price.
• A 624 Wh pack for the same money as the 468 Wh Solid Wheel: a computed 39 miles at 15 mph on the throttle for a 180 lb rider, against 29 on the Solid Wheel.
• Easy to step through: the frame's lowest edge is 15.2 inches up, and every row from 4'11" to 6'2" clears it with room to spare.
• A near-upright seat: the median rider leans 5 to 11 degrees with the bar as drawn, and carries 8 to 14 percent of body weight on the hands.
• It folds to 34.6 × 19.3 × 33.5 inches for a trunk or a closet, in the three steps the manual shows.
• Spoked wheels on 20 × 3.0 tires, with fluorescent reflective strips along each tire's edge.
• A basket, a rear cushion and footrests, all in the box, per the manual's assembly steps.
• A Bluetooth app for locking, settings, finding the bike and ride records, per the manual and gallery image 15.
• Delivered free, and damage handled by us: shipping costs nothing in the contiguous United States, and if you report transit damage within 48 hours, we take it up with the carrier.
• A full charge for about 11 cents, priced at the US household average for July 2026.

Red flags

Every one of these is about fit, and every one points you to a page or a bike that answers it.

• Wrong if you stand over about 5'10" and want the saddle at the formula height. The highest saddle top falls short for 70 of 100 riders at 6'0"; the LO26 Plus, also a folder, reaches for 56 of 100 at that height on 26-inch wheels.
• Wrong if you want hydraulic brakes and a rear shock on a folder. The Spoked Wheel stops on cable discs with a front fork only; the RS-A02 Plus folds with hydraulic discs, a rear shock and an 816 Wh pack for $1,199.
• Wrong if you want a Navy frame or cast wheels. The Solid Wheel comes in Black, White and Navy at the same $599, with a 468 Wh pack.
• Wrong for trails posted class 1 only. Throttle bikes are kept off those; our public-land guide sets out each federal agency's rule, and we will go over your trail's posted sign with you.
• Wrong for a rider below your state's minimum age. The manual defers to local law; tell us the rider's age and we will point you to a bike we sell that suits it.

Buy it if / Buy something else if

Buy it if you want a folder that goes into a trunk and still covers a long commute, with a 624 Wh pack, a throttle and pedal assist, a basket and a rear cushion, and you stand roughly 5'2" to 5'10", where the saddle table finds most riders at the formula height.

The Spoked Wheel's $599 buys a 500 W rear hub (800 W peak) with "55+Nm", a removable 48 V 13 Ah pack, a front fork, mechanical discs front and rear, 20 × 3.0 tires on spoked wheels, seven Shimano gears, a thumb throttle and five assist levels, a Bluetooth display, a basket, a rear cushion and footrests, all on a frame that folds in three steps.

Spreading the cost? Shop Pay on our Spoked Wheel listing showed "4 interest-free installments" on September 29, 2026, with a sample plan of $199.67 every 2 weeks for 6 weeks at 0% APR ($599.00 all told), or $54.06 a month for 12 months at 15% APR ($648.72), either one after an eligibility check.

Buy something else if you stand over about 5'10" and want a folder, where the LO26 Plus sits taller on 26-inch wheels; if you want hydraulic brakes and a rear shock, where the RS-A02 Plus folds with both; if you prefer cast wheels or Navy, where the Solid Wheel does; or if you would rather sit upright on a long bench, where the M20 does.

Our reviews of the CY20 Pro Solid Wheel, the LO26 Plus, the RS-A02 Pro, the RS-A02 Plus, the RS-A08 II, the M20-III, the M20, the STORM and the CREST run the same two models, so their tables line up with these. Our Samebike brand profile sets all ten models we carry side by side, and the e-bike reviews hub sorts every brand's bikes by riding style, rider and budget.

Before you buy: the checklist

Go through these eight before paying $599; the first three decide whether the Spoked Wheel fits you and the rides you have in mind.

1. Take your barefoot inseam, then find your height in the saddle table and the step-over table.
2. Look up your state's e-bike definition and minimum age in our atlas, and the class signs on the paths you plan to use.
3. Price your usual ride in watt-hours with the range tables, holding back a quarter of the 624.
4. Measure the trunk or closet for the folded 34.6 × 19.3 × 33.5 inches, basket off.
5. Plan the lift: the bike weighs 68 lb folded or not, and the box 81.5 lb.
6. Keep rider and cargo within 330 lb, the maximum load Samebike prints.
7. Decide where it charges: 4 to 6 hours by the specification table or 6 to 8 by the manual, on the bike or indoors.
8. Ask your home or renter's insurer whether an e-bike is covered, as the manual advises.

Buying it from us

Why buy the Spoked Wheel from Redtail

Buying the Spoked Wheel from us costs the same $599 Samebike's US store listed on September 29, 2026, in Black or White, and adds the following.

Changed your mind after delivery? A change-of-mind return under our refund policy needs an unopened, factory-sealed box and a request within 72 hours, and carries a 15% restocking fee plus return shipping; a canceled order costs 3%. Questions about fit or routes are free; ask them before you buy.

Frequently asked questions

How far can the Samebike CY20 Pro Spoked Wheel go on one charge?

For a 180 lb rider on level pavement, a full pack computes to about 39 miles at 15 mph on the throttle. You stretch that to about 61 with easy pedaling, get about 31 at 18 mph on the throttle, and about 15 on a steady 4% climb at 10 mph. Samebike's specification table lists 100 km (62 miles) as the maximum, and the range tables adjust every figure for your weight, climbing and the temperature.

What's the difference between the CY20 Pro Solid Wheel and the Spoked Wheel?

The wheels and the pack. The Spoked Wheel rolls on wire-spoked wheels with a 48 V 13 Ah pack of 624 Wh; the Solid Wheel uses cast wheels and a 36 V 13 Ah pack of 468 Wh, and both cost $599 on our store with the same motor, frame, fold and listed size.

You get about 39 miles at 15 mph on the throttle from the Spoked Wheel for a 180 lb rider on level pavement, against about 29 from the Solid Wheel, by each review's model. The Solid Wheel adds Navy to Black and White; its review covers it in full.

What is the top speed of the Samebike CY20 Pro Spoked Wheel?

32 km/h (19.9 mph), on Samebike's specification table and stat strip; the manual's specification page lists no top speed. If a speed figure decides where you may ride, ask us and we will get Samebike's written number for the bike you would receive.

Is the CY20 Pro Spoked Wheel street legal, and what class is it?

Your state decides, because Samebike gives it no class. The wording you meet will turn on motor power, top speed and whether the throttle moves the bike without pedaling, and for this bike those read 500 W with an 800 W peak, 32 km/h on the specification table, and yes. Find your state's wording in our 50-state atlas; the class section quotes the federal definition in full.

How much does the Samebike CY20 Pro Spoked Wheel weigh?

68.3 lb (31 kg) on Samebike's specification table and gallery image 18, and 68 lb in the manual, where the box weighs 81.5 lb. Folding makes it smaller, not lighter, so you lift the full 68 into a trunk.

What is the weight limit?

150 kg (330 lb), the same on Samebike's specification table, its stat strip, gallery image 18 and the manual. Counted as you plus your cargo, a 250 lb rider has 80 lb left for the basket and the rack; if you are near the line, email us and we will get Samebike's word on how it counts.

What battery does it use, and can you remove it?

A removable 48 V 13 Ah pack of 624 Wh that stands behind the seat tube, under the saddle. You flip the saddle, turn the key and lift the pack out, per the manual, and you can charge it on the bike or at a counter indoors. For a spare, email us your order number.

How long does it take to charge?

Samebike prints two figures: 4 to 6 hours on its specification table, and 6 to 8 on the charger panel, gallery image 19 and in the manual. You can check the arithmetic yourself: the manual's charger puts out 2 A, and the 13 Ah pack at 2 A takes about 6.5 hours, so plan on an overnight charge.

What does a full charge cost?

About 11 cents: 624 Wh times 18.31 cents per kilowatt-hour, July 2026's national household average in U.S. Energy Information Administration data, plus whatever the charger itself loses. At 15 mph on the throttle you use 16.1 Wh a mile, about three-tenths of a cent, and a full charge runs from about 8 cents in Louisiana to about 30 in Hawaii.

How do you fold the CY20 Pro Spoked Wheel?

In three steps, per the manual and gallery image 22: fold the handlebar down, open the frame's folding buckle, and swing the front half back beside the rear wheel. Folded without the basket, it measures 34.6 × 19.3 × 33.5 inches, and you lift the full 68 lb into the trunk.

What rider height fits the CY20 Pro Spoked Wheel?

Samebike prints 4'9" to 6'9" on gallery image 18 and 150 to 210 cm on its size-and-fit drawing. By our fit model, riders of about 5'2" to 5'10" fit best: at 5'8" the median barefoot inseam is 32.6 inches, which puts your formula saddle height at 39.9 inches off the ground, inside the post's 35.7 to 41.8.

Over 5'10", check the saddle table against your own inseam first, since the post reaches the formula height for 30 of 100 riders at 6'0".

Does the CY20 Pro Spoked Wheel have a throttle?

Yes: the specification table lists a "Detachable throttle", and Samebike's thumb-throttle panel says it "provides full electric drive". You also get five pedal-assist levels, and the range tables show what the throttle, or pedaling beside it, does to your miles.

Does it have an app?

Yes. The manual says the display carries a Bluetooth module that works with the SAMEBIKE app on Android and iOS, and gallery image 15 lists what it does: locking and settings, locating the bike, and tracking your speed, battery level and mileage.

Can you ride it in the rain?

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 whole bike IP64, while the manual prints IP54. You should ride carefully in the wet and let the bike dry before you plug the charger in.

Where do I find the CY20 Pro Spoked Wheel manual?

On Samebike's Manuals and Guides page, listed as the "Samebike CY20 PRO Spoked Wheel User Manual" (PDF). The link on the product page opens the Solid Wheel's manual instead, so you want the Spoked Wheel's file for its 54.6 V charger rating.

Can I pay for it in installments?

Yes. On September 29, 2026 our listing's Shop Pay offered "4 interest-free installments", with a sample plan of $199.67 every 2 weeks for 6 weeks at 0% APR ($599.00 in total), or $54.06 a month for 12 months at 15% APR ($648.72 in total); your approval depends on an eligibility check by Affirm's lending partners.

Is Samebike a legit brand?

Samebikes are made by Guangzhou Sameway Electric Bicycle Co., Ltd., which its about page says was established in 2004, and the Spoked Wheel manual prints the company's Guangzhou address. When we searched on September 29, 2026, the CPSC's recall database and its site search showed no recall or warning for Samebike, and each figure on this page comes from Samebike's US store or its manual.

Limitations of this review

What this review cannot settle on its own, numbered, with what would settle it where that is known.

1. We sell this bike. Weigh the red flags as heavily as the green ones.
2. 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.
3. 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.
4. Bafang's published motor stands in for Samebike's. Samebike's documents give no maker, unloaded speed or efficiency curve for this motor, so the model builds it on Bafang's RM G0H0 at 48 V and 500 W, unloaded at 19.9 mph. Raising the efficiency from 80% to 82% lifts the 15 mph throttle figure from 39 miles to 41; rating the comparable at 750 W trims it to 38 and lifts the 8% climb at 10 mph from 7.6 miles to 8.5.
5. 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 Samebike's lower printed range, 50 km, which a steady 18 mph on the throttle reproduces, though Samebike names no speed for it); only a Spoked Wheel ridden until its pack ran out, with speed, load and weather recorded, would check it end to end.
6. The torque ceiling is the floor of Samebike's "55+Nm"; a higher ceiling changes only the steepest climbs, where the model's motor runs at its cap, and it is why the hill table stops at 8%.
7. The model assumes the full 624 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).
8. The tire and wheel figures are borrowed. No drum test covers a 20 × 3.0 tire, so rolling resistance is the median of ten 26 × 4.00 fat tires Bicycle Rolling Resistance measured at 12 psi, bracketed in the tire table. Samebike prints no wheel diameter; the 21.53-inch wheel is the mean of the two tire circles on the Solid Wheel page's photograph, and the Spoked Wheel's own photograph reads 20.3 and 20.9 inches.
9. 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.
10. The fit figures rest on a measured photograph. Samebike's size-and-fit image is a photograph with dimension lines, scaled by the 1,135 mm wheelbase; on the Solid Wheel page's photograph of the same frame, four of five listed dimensions measure within 3.5 percent.
11. The Spoked Wheel's own photograph reads differently. Measured the same way, it puts the listed length at +1.6% and the lowest seat height at −0.8%, but the highest seat height at −3.8% and the two handlebar heights at +3.7% and +4.3%; its saddle top reads 34.3 and 39.6 inches, and its frame's lowest edge 14.7. Samebike lists the same dimensions for both wheel types, and the fit tables use the Solid Wheel's photograph, which matches more of them.
12. The riders are soldiers. All 6,068 bodies come from the Army's 2012 ANSUR II survey, which holds too few riders above 6'4" to fill a row, so the tables stop at 6'2", below the top of Samebike's windows (6'9" and 210 cm).
13. Samebike prints the USB port both ways. The specification table lists "USB Charger: No", a feature panel mentions "our convenient USB ports", and the Spoked Wheel manual's specification table has no USB row.
14. The hand load is an upper bound. It assumes a fully relaxed back, with the arms holding up the upper body; bracing your core lowers it.
15. The lean assumes a straight arm. Each rider's lean is the least tilt, pivoting at the sit bones, that lets a straight arm reach the grip; a bent elbow, or sitting farther back on the saddle, changes it, and the bracket in the lean table spans every saddle position and every point along the grip.
16. One formula decides who fits. A rider counts as fitting when 109% of inseam falls inside the post's reach, and the 106% column repeats the count at the lower end that well-trained cyclists rode. In Peveler et al., 2005, 109% put the knee inside the knee range of 25 to 35 degrees for 55% of 19 trained cyclists, so finish with the heel check in the setup steps, which put 70% of them in that range.
17. The page's introduction calls the CY20 Pro "a high-performance dual-motor eBike", while its specification table lists one 500 W motor and the manual's overall view marks one motor at the rear hub; this review follows the table and the manual.
18. 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.
19. Certification. The Spoked Wheel manual shows "EPAC EN 15194", and Samebike's studio photographs carry a TÜV SÜD badge reading "UL 2849". The page, product record and manual print no UL certificate number, and TÜV SÜD's public Certificate Explorer, searched September 28, 2026, lists eight Sameway attestations to the European standard EN 15194, two naming "CY20, C05 Pro", and none under UL 2849.
20. The gallery shows a color we do not list. Gallery images 3, 4, 6 and 9 show a Navy frame with spoked wheels, and gallery image 5 a Navy bike on a seaside path; Samebike's US Spoked Wheel page and our listing offer Black and White.
21. Gallery image 18 labels its axle-to-axle line "Straddle Height: 1135mm", the figure the size list gives as the wheelbase; the step-over in this review is measured, not read from that label.
22. 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.
23. Price and stock change. We read both on our listing and on Samebike's US store on September 29, 2026.
24. 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.

Samebike's own wording for each set, read September 29, 2026; wherever the review had to choose, it used the first column, except the charge time, where the manual's charger rating supports the second.

The bottom line

For $599, the Spoked Wheel puts a 500 W rear hub with an 800 W peak and "55+Nm", a removable 624 Wh pack, a front fork, cable discs, 20 × 3.0 tires on spoked wheels, seven Shimano gears, a throttle, a Bluetooth display, a basket and a rear cushion on a frame that folds into a trunk.

A 180 lb rider gets about 39 level miles at 15 mph on the throttle, or 61 with easy pedaling, and a full charge costs about 11 cents at the national average. With 500 W, 32 km/h on the specification table and no class from Samebike, your state decides where it may go.

The saddle suits riders of about 5'2" to 5'10" best, and the low frame lets riders of any height from 4'11" step through; over 5'10", read the saddle table before ordering. Shop Pay on our listing offered 4 interest-free installments to buyers who qualify.

Tell us your height, barefoot inseam and usual ride before you order. We will say where the saddle lands, how the ride prices out in watt-hours of the 624, and how the paths you name treat a throttle bike.

Source 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.

Expiry conditions

Any of these would date the page: a new price, specification, range figure, photograph or size list on Samebike's US Spoked Wheel page; a revised Spoked Wheel manual; Samebike's written answer on the charge time, 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.

So would a change at the federal level: an amendment to 15 U.S.C. § 2085, a class Samebike assigns the Spoked Wheel, or a CPSC recall or warning naming Samebike or Sameway. Verified September 29, 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.

1. SAMEBIKE US (Guangzhou Sameway Electric Bicycle Co., Ltd.), CY20 PRO Spoked Wheel Portable Commuter Powerful Peak 800W Electric Bike — product page (Specifications table; title line; stat strip; feature panels; Size and Fit list and photograph; gallery; introduction; FAQ; policy block). Retrieved September 29, 2026. https://us.samebike.com/products/cy20-pro-spoked-wheel-portable-commuter-powerful-peak-800w-electric-bike
2. SAMEBIKE US (Shopify product record), CY20 PRO Spoked Wheel — product record (.json) (variants[].price, compare_at_price; images[]; body_html). Retrieved September 29, 2026. https://us.samebike.com/products/cy20-pro-spoked-wheel-portable-commuter-powerful-peak-800w-electric-bike.json
3. Guangzhou Sameway Electric Bicycle Co., Ltd. (SAMEBIKE), SAMEBIKE CY20 Pro user manual (Spoked Wheel, file CY20_Pro.pdf) (Safety warnings; Item Specifications (page 6); Product components; Assembly; Folding Steps; Display Instruction; App; back cover). Retrieved September 29, 2026. https://cdn.shopify.com/s/files/1/0684/9173/9372/files/CY20_Pro.pdf?v=1781230829
4. SAMEBIKE US, Manuals and Guides (CY20 PRO Spoked Wheel entry). Retrieved September 29, 2026. https://us.samebike.com/pages/manuals-and-guides
5. SAMEBIKE US, CY20 PRO Solid Wheel Portable Commuter Powerful Peak 800W Electric Bike — product page (Specifications table; Size and Fit list and photograph). Retrieved September 29, 2026. https://us.samebike.com/products/cy20-pro-portable-commuter-powerful-500w-electric-bike
6. Guangzhou Sameway Electric Bicycle Co., Ltd. (SAMEBIKE), SAMEBIKE CY20 Pro user manual (Solid Wheel, file CY20_PRO_User_Manual.pdf) (Unpacking and specs; Charging Methods). Retrieved September 26, 2026. https://cdn.shopify.com/s/files/1/0684/9173/9372/files/CY20_PRO_User_Manual.pdf?v=1774578907
7. SAMEBIKE US, Warranty Policy ('Frame warranty for 3 years, batteries, motors and other accessories warranty for 1 year'; 'Batteries'). Retrieved September 29, 2026. https://us.samebike.com/pages/warranty-policy
8. SAMEBIKE US, About Us (company paragraph). Retrieved September 29, 2026. https://us.samebike.com/pages/about-us
9. SAMEBIKE EU, SAMEBIKE CY20 Pro | SAMEBIKE EU (generation panel). Retrieved September 29, 2026. https://samebike.com/products/cy20-pro-portable-commuter-electric-bike
10. 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
11. 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
12. 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
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
14. 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
15. US Consumer Product Safety Commission, CPSC Recall REST service, saferproducts.gov (RecallTitle, ProductName and Manufacturer queries; 623-record corpus). Retrieved September 29, 2026. https://www.saferproducts.gov/
16. US Consumer Product Safety Commission, cpsc.gov site search (queries Samebike and Sameway, with a known-positive control). Retrieved September 29, 2026. https://www.cpsc.gov/search?search_api_fulltext=Samebike
17. 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 September 28, 2026. https://www.eia.gov/electricity/monthly/epm_table_grapher.php?t=epmt_5_6_a
18. Redtail eBikes, Samebike CY20 Pro Spoked-Wheel E-Bike — product listing (price, variants, Shop Pay installments block). Retrieved September 29, 2026. https://redtailebikes.com/products/samebike-cy20-pro-spoked
19. Redtail eBikes, Shipping policy (Processing & delivery; Receiving & damage claims; Where we ship). Retrieved September 29, 2026. https://redtailebikes.com/policies/shipping-policy
20. Redtail eBikes, Refund policy (Change-of-mind returns; Order cancellations). Retrieved September 29, 2026. https://redtailebikes.com/policies/refund-policy
21. Redtail eBikes, Terms of service (delivery inspection paragraph). Retrieved September 29, 2026. https://redtailebikes.com/policies/terms-of-service
22. Affirm, Inc., Affirm's lending partners (lending partners page). Retrieved September 28, 2026. https://www.affirm.com/lenders
23. TUV SUD, Certificate Explorer (API /api/v1/certifications: SearchText and CertificateHolder Sameway; controls). Retrieved September 28, 2026. https://www.tuvsud.com/en-us/customer-hub/ps-cert
24. 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
25. 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
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