Samebike M20 Retro Off-Road Electric Bike
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Samebike M20 Retro Off-Road Electric Bike
The M20 in Peru, the one color we carry: a tank-shaped battery over the top tube, a hub motor in the rear wheel, a wire basket in the frame and a long bench over a coil-over shock.
One 1200 W rear hub with an 1800 W peak and a removable 864 Wh pack, on a moped-style frame with hydraulic discs, a coil-over shock, a basket where an engine would sit and a long bench, for $999.
The Samebike M20 is a $999 moped-style fat-tire e-bike: one 1200 W rear hub motor (1800 W peak), a removable 48 V 18 Ah pack of 864 Wh, hydraulic disc brakes and a frame basket. For a 180 lb rider holding 15 mph on the throttle over level pavement, our review's range model works out about 47 miles.
- 1200 WRear hub motor
- 1800 WPeak, specification table
- 864 WhOne 48 V 18 Ah pack
- HydraulicDisc brakes, both wheels
- 20 × 4.0 inFat tires
Why the M20
One 1200 W hub in the rear wheel
Samebike's specification table rates the motor at 1200 W and its peak at 1800 W, the number in the M20's product title, and the stat block beside its motor panel reads "100+Nm Torque". It sits in the rear hub; the front wheel turns on a plain hub behind its disc rotor.
About 69 miles at 15 mph, pedaling lightly
The 48 V 18 Ah pack in the tank above the top tube holds 864 watt-hours and comes off with its key. Holding 15 mph over level pavement with about 75 W of easy pedaling, a 180 lb rider gets about 69 miles from it by our review's model, and about 47 on the throttle alone.
Hydraulic discs at both wheels
Both wheels stop on hydraulic discs, which Samebike's brake panel says "provide a better braking effect in any condition, ride rain or shine". For an emergency stop at speed, the manual's order is the rear brake first, then the front.
A lockable fork and a coil-over rear shock
The specification table lists an "Adjustable front fork+rear suspension". Samebike's fork panel has you lock the fork on flat surfaces for a steady ride and free it on bumpy roads, and a coil-over shock sits under the long bench.
A basket where the engine would be
Samebike's "Loading Space" panel calls it a "Mid-Mounted Shopping cart" that "helps you carry groceries, gear and more when you're out on the roads or trails". It sits in the frame's lower triangle, below the battery, so the load rides low between the wheels.
A headlight, a tail light, a horn and USB
Samebike's headlight panel promises "a large headlight", and the manual lists an electric horn and a 5 V 1 A USB port. A thumb throttle and a control pad sit at the left grip, the pad stepping through five assist levels, and the color display shows your speed, trip, battery and assist level.
What stands out on the spec sheet
- Hydraulic disc brakes at $999, with a lockable fork and a coil-over rear shock.
- A frame basket Samebike calls a "Mid-Mounted Shopping cart", so groceries ride low between the wheels.
- An IP54 rating, an electric horn and a 5 V 1 A USB port, all listed in the M20 manual.
- A tank-shaped pack that comes off with its key, so it can charge indoors while the bike stays parked.
- Walk assist under 6 km/h when you hold the minus key, for pushing the bike beside you.
Why buy it from Redtail
The price
$999
Matched to Samebike’s own sale price for the M20, read September 28, 2026. Samebike’s regular price is $1,499.
Pay over time
4 interest-free installments
Shop Pay offers 4 interest-free installments on the $999 M20. Its sample plans read $333.00 every two weeks for six weeks at 0% APR, $999.00 in total or $90.17 a month for 12 months at 15% APR, $1,082.04 in total, subject to an eligibility check (read September 28, 2026).
Rates from 0-36% APR. Payment options through Shop Pay Installments are subject to an eligibility check and are provided by these lending partners: affirm.com/lenders. Options depend on your purchase amount, and a down payment may be required. State notices to consumers: affirm.com/licenses.
Free US shipping
$0
Delivery is free within the contiguous United States, and the M20 leaves us within 1–3 business days with its tracking number emailed as it ships.
We file the warranty claim
Done for you
Send us photos or a short video of any part that fails, with your order number, and we file the claim with Samebike and see it through to the repair or the replacement part.
US support
Real answers
Before you order, ask us whether your feet will reach the ground from the bench, how many of the 864 Wh your route uses, or whether your trails allow throttle bikes, and our US team answers in writing.
Want to know whether your feet will reach the ground from the M20's bench, or how far 864 Wh takes your usual ride? Email support@redtailebikes.com before you order and we will answer in writing, then buy with the button above.
Who the M20 fits
Samebike recommends the M20 for riders from 5'6" to 7'2". Its bench is fixed, so fit comes down to your feet at a stop: sitting where Samebike's drawing starts the G line, 32.2 inches up, 72 of every 100 riders at 5'8" put both feet flat on the ground, 96 at 5'10" and 30 at 5'6"; at the listed 32.5 inches the same heights score 56, 90 and 20.
It’s your bike if
- You want a moped-style bike with a basket in the frame and hydraulic discs, for $999
- You ride on the throttle or with easy pedaling, sitting in the way a moped rides
- You stand about 5'10" or taller, where 90 or more of every 100 riders sit flat-footed on either reading of the bench
- Your rides fit one pack: about 47 miles at 15 mph on the throttle for a 180 lb rider on level pavement
Want something different? We stock it
- If you are under about 5'8" and want both feet flat at a stop, the RS-A02 Plus pairs the same 1200 W and 1800 W motor figures with hydraulic discs and an 816 Wh pack, for $1,199, on a frame 95 of every 100 riders at 5'0" can stand over barefoot.
- If you want to pedal long distances at full leg extension, the RS-A08 II carries a seat post that Samebike's drawing takes to the pedaling formula's height for 85 of every 100 riders at 5'8", with a fork, a rear shock and hydraulic discs, for $1,399.
- If one pack will not cover your rides, the M20-III carries a 1000 W hub motor in each wheel and two 48 V 18 Ah packs, 1,728 Wh in all, with the same size-and-fit list figures, for $1,499.
Our M20 review sets each height from 5'0" to 6'4" against Samebike's drawing of the M20: where your feet land at a stop on all three bench readings, how far you lean to the grips and how much weight your hands carry.
What you get with the order
Shipping
Free shipping on every electric bike within the contiguous United States (lower 48).
Orders are prepared and dispatched within 1–3 business days. Most e-bikes arrive within 5–10 business days after dispatch, depending on location.
Delivery protection
Check the bike when it arrives. If anything is damaged, defective or wrong, note it with the carrier and email us photos within 48 hours of delivery, and we take it from there.
Returns
Change of mind on an unopened, factory-sealed bike: request the return within 72 hours of delivery. The restocking and return-shipping terms are in the Redtail Refund & Return Policy.
Alaska, Hawaii, U.S. territories, P.O. boxes and remote routes are quoted case by case: send us your ZIP code before you order and we will confirm the route in writing. Full terms: Redtail Shipping Policy · Redtail Refund & Return Policy.
Owning it in your state
Samebike's US page gives the M20 no e-bike class, so your state's own definition decides where you may ride it.
Those definitions look at what Samebike publishes for this bike: a 1200 W motor with an 1800 W peak, 50 km/h (31.1 mph) on the specification table, and a thumb throttle that moves it without pedaling. No CPSC recall names Samebike as of September 28, 2026, by our search of the federal recall database.
The rules for where you ride are in our state-by-state e-bike law guide.
How the M20 compares with three other Samebikes we sell
Every figure is Samebike’s own, from each model’s US specification table as read on October 2, 2026; prices are ours, matched to Samebike’s the same day. Every column heading links to that bike.
| Spec | M20 | M20-III | RS-A02 Plus | LO26 Plus |
|---|---|---|---|---|
| Price | $999 | $1,499 | $1,199 | $999 |
| Motor | 1200 W rated, 1800 W peak | 2000 W rated, 3000 W peak | 1200 W rated, 1800 W peak | 1000 W rated, 1500 W peak |
| Battery | 48 V 18 Ah (864 Wh) | 48 V 36 Ah (1,728 Wh) | 48 V 17 Ah (816 Wh) | 48 V 15 Ah (720 Wh) |
| Top speed | 50 km/h (31.1 mph) | 50 km/h (31.1 mph)* | 45 km/h (28.0 mph) | 40 km/h (24.9 mph) |
| Tires | 20 × 4.0 in | 20 × 4.0 in | 20 × 4.0 in | 26 × 3.0 in |
| Brakes | Hydraulic disc | Hydraulic disc | Hydraulic disc | Hydraulic disc |
| Suspension | Adjustable front fork + rear suspension | Adjustable front fork + rear suspension | Adjustable front fork + rear suspension | Adjustable front fork + rear shock† |
| Weight | 58 kg (127.9 lb) | 58 kg (127.9 lb) | 33 kg (72.8 lb) | 30.5 kg (67.2 lb) |
| Payload | 180 kg | 180 kg | 150 kg | 150 kg |
| Folds | No | No | Yes | Yes |
* For the M20-III, 50 km/h is the figure on Samebike's stat strip; its specification table's entry reads "5KM/H".
† For the LO26 Plus, the specification table's suspension entry reads "Adjustable front fork"; its product page describes "hydraulic rear shocks".
Full specifications
| Motor | One 1200 W hub motor in the rear wheel, on the specification table |
| Peak power | 1800 W on the specification table, the title and the stat strip |
| Torque | "100+Nm" on the stat block and gallery image 18 |
| Battery | One 48 V 18 Ah pack (864 Wh), "48V 18AH" on the specification table; it comes off with its key |
| Range, product page | 70 km (43 mi) on pure electric and a 140 km (87 mi) "Max range" on the specification table; 70–140 km on the stat strip; 60 km pure electric, 90 km assisted and 140 km at pedal-assist level 1 on the battery panel; "Up to 65 km+ on PAS mode" in the FAQ; 45–62 miles on gallery image 16 |
| Range, manual | Approx 50–62 miles (100–120 km) in pedal-assist mode and approx 25–28 miles (50–60 km) in pure electric mode, as the manual prints them |
| Top speed | 50 km/h (31.1 mph) on the specification table, stat strip and motor panel; 25 km/h in the manual |
| Brakes | Hydraulic disc, front and rear |
| Suspension | Adjustable front fork and a coil-over rear shock |
| Drivetrain | Shimano 7-speed |
| Assist | 5 pedal-assist levels and a thumb throttle |
| Display | Color LCD; the manual calls it the "S1 meter" |
| Tires | 20 × 4.0 in, Chao Yang with tan sidewalls in Samebike's gallery, INNOVA in the manual's photographs |
| Frame | "Iron" on the specification table, "6061 Aluminum Alloy" in the manual; does not fold |
| Water resistance | IP54, in the manual |
| Weight | 58 kg (127.9 lb) on the specification table; 50 kg (110.2 lb) for the bike in the manual |
| Load capacity | 150 kg (330 lb) on the drawing, gallery image 17 and the manual; 180 kg on the specification table and stat strip |
| Charging time | 4–6 hours on the specification table and gallery image 16; 4–8 hours in the manual |
| Charger | 100–240 V input, 54.6 V 3 A output |
| Maximum climb | 25 degrees, in the manual |
| USB port | 5 V 1 A |
| Walk mode | Under 6 km/h |
| Horn | Electric |
| Lights | Headlight; a tail light in Samebike's photographs |
| Basket | A "Mid-Mounted Shopping cart", a wire basket in the frame |
| Size | 1.7 × 0.67 × 1.12 m (66.9 × 26.4 × 44.1 in) on the specification table; 1700 × 670 × 1120 mm in the manual |
| Seat height | 32.5 in, a fixed bench, on the size-and-fit list; 32.4 in on gallery image 17 |
| Total height | 44.3 in |
| Wheelbase | 43.3 in |
| Handlebar width | 26 in |
| Recommended rider height | 5'6"–7'2", on Samebike's size-and-fit drawing and gallery image 17 |
| Shipping box | 1410 × 320 × 920 mm, 58 kg (127.8 lb), in the manual |
| Marks in the manual | EPAC EN 15194 and CE |
Samebike’s figures, from its US product page and specification table (us.samebike.com/products/m20-off-road-peak-1800w-fat-tire-electric-bike) and its owner’s manual, read September 28, 2026. Metric-to-US conversions are ours.
What we counted. By the US specification tables of the eleven Samebike models we sell, the M20 carries the highest peak rating of the six priced at $999 or less, 1800 W against 1500 W on the VOYAGER, the LO26 Plus and the RS-A02 Pro and 800 W on the two CY20 Pros, and the second-largest battery among them, 48 V 18 Ah (864 Wh), after the VOYAGER's 960 Wh and ahead of 720 Wh on the LO26 Plus and the RS-A02 Pro and 624 and 468 Wh on the two CY20 Pros.
From the US specification table and page of each of the eleven Samebike models on our shelf and our own listing prices, read October 2, 2026.
Where Samebike prints two figures
Where Samebike's page, manual, FAQ and gallery give the M20 two or more figures for one thing, each figure is listed here, with the one the table above uses.
- Weight: 58 kg (127.9 lb) on the specification table, equal to the manual's packaged weight of 127.8 lb (58 kg); the manual gives the bike alone as 110.2 lb (50 kg), the size-and-fit drawing prints 94.7 lb and gallery image 17 prints 70.5 lb. The table above uses 58 kg, the heaviest.
- Load: 150 kg (330 lb) on the drawing, gallery image 17 and the manual; 180 kg on the specification table and the stat strip. Plan on 150 kg.
- Top speed: 50 km/h on the specification table, the stat strip and the motor panel; 25 km/h in the manual.
- Range: 70 km on pure electric and a 140 km "Max range" on the specification table, 70–140 km on the stat strip, 60 km pure electric, 90 km assisted and 140 km at level 1 on the battery panel, "Up to 65 km+ on PAS mode" in the FAQ, 45–62 miles on gallery image 16, and the manual's two bands as printed above.
- Frame: "Iron" on the specification table, "6061 Aluminum Alloy" in the manual.
- Throttle: "Thumb throttle" on the specification table and a "Thumb Turn" feature panel, beside another panel titled "Half Twist Throttle"; Samebike's photographs show the thumb lever.
- Tires: Chao Yang in Samebike's gallery photographs, INNOVA in the manual's.
- Seat height: the size-and-fit list prints 32.5 inches, and gallery image 17 prints 32.4.
- Charge time: 4–6 hours on the specification table and gallery image 16, 4–8 hours in the manual.
- Warranty: the policy block on the M20's page reads "12 Months Warranty", and Samebike's warranty policy page gives the frame 3 years and batteries, motors and other accessories 1 year; the warranty cards below quote that page.
Straight answers before you order
The bench is fixed: at 5'6", 30 of every 100 riders reach the ground flat-footed from the point where Samebike's drawing starts its G line, and 20 at the listed 32.5 inches.
Send us your barefoot inseam and we will read it against Samebike's drawing before you order. Under about 5'8", the RS-A02 Plus keeps the same motor figures on a frame 95 of every 100 riders at 5'0" can stand over. See the RS-A02 Plus. Read the stop table.
From 5'2" up, the bench sits lower than any rider's pedaling-formula saddle height: 6.6 inches under the median rider's at 5'8".
That low seat is what puts your feet down at a stop, and it suits the throttle and easy pedaling. To pedal long miles at full leg extension, the RS-A08 II's seat post reaches the formula height for 85 of every 100 riders at 5'8". See the RS-A08 II. Read the bench table.
Samebike's longest range figure, 140 km (87 miles), is the specification table's "Max range", which its battery panel ties to pedal-assist level 1, the gentlest of five.
Steady-speed figures plan better: a 180 lb rider on level pavement gets about 47 miles at 15 mph on the throttle and 69 with easy pedaling, or 35 and 52 with a quarter of the pack held back. See the range tables.
At 58 kg (127.9 lb) by its specification table, 68.9 inches long and 44.3 tall by its size-and-fit list, and on a frame that does not fold, the M20 is a bike for a garage or a ground-floor room.
Plan two people for any lift and take the pack off first. If it has to fit a car trunk or a closet, the RS-A02 Plus folds and carries an 816 Wh pack. See how the RS-A02 Plus folds.
Samebike prints two top speeds for the M20: 50 km/h on the specification table and 25 km/h in the manual.
Email us before you order and we will get the delivered bike's power and speed from Samebike in writing, so you can read them against your state's definition before the first ride.
Manuals and assembly
The M20 manual's assembly chapter: set the handlebar where you like it and tighten the stem's four screws, buckle the headlight onto the fork and fit the front fender, drop the front wheel in with its disc toward the brake and lock the quick-release lever, connect the power plug beside the rear shock by lining up its arrows and tightening its nut clockwise, then thread the L and R pedals, the left one counterclockwise. Inside the box: two large wrenches, four hex keys, a screwdriver and the charger. If a step stalls you, email us its number and we will talk you through it.
Warranty cover, and who files the claim
A fault is our job
If the bike will not power on, will not charge, shows an error code or has a faulty component, send photos or video and your order number. We open the claim with Samebike and coordinate the repair or replacement remotely, start to finish.
What Samebike publishes
Samebike’s warranty policy states: “Frame warranty for 3 years, batteries, motors and other accessories warranty for 1 year.” After the first year, a battery earns “a prorated credit, based on months of service,” toward a new one.
Samebike’s terms, from its Samebike Warranty Policy (us.samebike.com/pages/warranty-policy), read September 26, 2026.
Wear items
Samebike’s policy lists brake pads, rotors, spokes, tires and tubes, chains, chain rings, cassettes and the crankset among the parts not typically covered, as ordinary wear and tear.
Frequently asked questions
How far can the Samebike M20 go on one charge?
On level pavement with a 180 lb rider, our review's model gives about 47 miles at a steady 15 mph on the throttle and about 69 with easy pedaling. Samebike's own figures run from 70 km (43 miles) on pure electric to a 140 km (87-mile) "Max range" on its specification table.
What is the top speed of the Samebike M20?
Samebike's specification table, stat strip and motor panel print 50 km/h (31.1 mph), and the M20 manual prints 25 km/h. Email us and we will get Samebike's written figure for the bike you order.
What's the difference between the M20 and the M20-III?
The M20 has one 1200 W rear hub (1800 W peak) and one 864 Wh pack for $999; the M20-III has a 1000 W hub in each wheel and two packs, 1,728 Wh, for $1,499. The two carry the same size-and-fit list figures, a fixed bench and hydraulic discs.
Is the M20 street legal, and what class is it?
Samebike gives it no class, so your state's definition decides where you may ride it, and that definition reads Samebike's figures: a 1200 W motor with an 1800 W peak, 50 km/h on the specification table and a thumb throttle.
How much does the Samebike M20 weigh?
We plan on 58 kg (127.9 lb), its specification table's figure. The manual gives 50 kg (110.2 lb) for the bike and 58 kg packed, the size-and-fit drawing 94.7 lb and gallery image 17 70.5 lb.
What is the M20's weight limit?
Plan on 150 kg (330 lb), printed on Samebike's drawing, on gallery image 17 and in the manual; the specification table and stat strip give 180 kg. Rider and cargo of 202.1 lb or less keeps you inside that figure even if it counts the bike at 127.9 lb.
How much torque does the M20 have?
"100+Nm", on Samebike's stat block and gallery image 18; our review's range model uses 100 N·m, the low end of that figure.
Can you replace the M20's battery?
Yes: with the power off, turn the key clockwise, push the pack forward and lift it away. When it is due, send us your order number and we will source the same 48 V 18 Ah pack.
How long does the M20 take to charge?
4 to 6 hours by Samebike's specification table and gallery image 16, 4 to 8 by the manual; the 3 A charger fills the 18 Ah pack in about 6.0 hours by simple division.
What does a full charge of the M20 cost?
About 16 cents at the US average residential rate for July 2026, 18.31 cents per kilowatt-hour (U.S. Energy Information Administration), before the charger's own losses; at 15 mph on the throttle that comes to about a third of a cent a mile.
What rider height fits the M20?
Samebike recommends 5'6" to 7'2". On its drawing, 72 of every 100 riders at 5'8" sit flat-footed on the bench where the G line starts and 56 at the listed 32.5 inches; at 5'10" the two readings give 96 and 90.
Does the Samebike M20 have a throttle?
Yes, a thumb throttle that moves it without pedaling, plus five pedal-assist levels; the display starts each ride at level 1.
Where do I find the M20 manual?
Samebike's Manuals and Guides page links the January 2023 M20 manual, listed in the sources below; it covers assembly, charging, the battery key, the display and the warranty.
Can I pay for the M20 in installments?
On September 28, 2026 Shop Pay's widget offered 4 interest-free installments, with sample plans of $333.00 every two weeks for six weeks at 0% APR, $999.00 in total, or $90.17 a month for 12 months at 15% APR, $1,082.04 in total, subject to an eligibility check.
Rates from 0-36% APR. Payment options through Shop Pay Installments are subject to an eligibility check and are provided by these lending partners: affirm.com/lenders. Options depend on your purchase amount, and a down payment may be required. State notices to consumers: affirm.com/licenses.
What tire pressure does the M20 use?
The manual sends you to the tire's own sidewall ("According to the actual information on the tire") and asks for a pressure check before you ride, since low pressure shortens your range.
Is the M20 good for off-road riding?
Samebike's FAQ places it "between electric bicycles and electric dirt bikes", and it rolls on 20 × 4.0 tires with a lockable fork and a coil-over rear shock; each trail's land manager decides whether a throttle bike may ride there.
Does the M20 come with a mirror?
No. Samebike's FAQ asks riders to slow down, turn their heads and signal by hand when they check the traffic behind them.
Is Samebike a legit brand?
Guangzhou Sameway Electric Bicycle Co., Ltd. makes it, and Samebike's US about page gives 2004 as the company's start. The CPSC listed no Samebike recall on September 28, 2026, and a warranty claim on your M20 comes to us first.
Buy the M20 nowOne click, straight to Shop Pay checkout — 4 interest-free installments available.
Keep looking
Read our M20 review · Every Samebike at Redtail · Compare the M20-III · Compare the RS-A02 Plus · Compare the LO26 Plus · E-bike laws in your state
Primary sources
- Samebike, M20 Off Road Peak 1800W Fat Tire Electric Bike, US product page and specification table, us.samebike.com/products/m20-off-road-peak-1800w-fat-tire-electric-bike. Retrieved September 28, 2026.
- Samebike, M20 user manual (January 2023), English, cdn.shopify.com/s/files/1/0684/9173/9372/files/M20.pdf. Retrieved September 28, 2026.
- Samebike Warranty Policy, us.samebike.com/pages/warranty-policy. Retrieved September 26, 2026.
- Redtail Shipping Policy. Retrieved September 26, 2026.
- Redtail Refund & Return Policy. Retrieved September 26, 2026.
- Our state-by-state e-bike law guide. Retrieved September 26, 2026.
How we verified this page. Every specification above was read from Samebike’s own US product page and specification table and checked against its owner’s manual on September 28, 2026; every metric-to-US conversion is recomputed, and where Samebike prints two figures for one thing, both are listed above with the one this page uses. Prices and stock were read from our store and matched to Samebike’s US store the same day. Corrections: support@redtailebikes.com.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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