Samebike M20 Retro Electric Fat Bike
SKU: U54752
SPEED15.5 Mph
RANGE43 Miles
MOTOR250W
BATTERY18Ah
CHARGING4-6 Hours
WEIGHT89 lbs
Adjustable Cycle Helmet£38.99
Front and Rear Light Set£44.99
In stock now, a similar model
Samebike LO26 Plus Fat Tire Foldable E-Bike£849.00In stockView
This Model Is Fully Compliant With UK Road Regulations
This bike is built to comply with UK Electrically Assisted Pedal Cycle (EAPC) regulations, meaning it can be used on public roads and cycle paths without registration, tax, or a licence. Motor assistance is limited to 250W and cuts off at 15.5 mph (25 km/h).
See UK LegislationThis one carries 864 Wh of battery. The maker quotes 43 mi; in mixed riding with some hills, expect nearer 32 mi. A full charge costs about £0.24. Across a year that is roughly £978.00 less than making the same journeys by car, so the bike pays for itself in about 12 months. Everything here is worked out from this bike's own specification. Estimates, not promises: the assumptions are printed underneath.
Range you can expect
| Low assist, flat roads | 43 mi |
|---|---|
| Mixed riding, some hills | 32 mi |
| Full assist, loaded or hilly | 24 mi |
| Riding time on a charge | 2 h 46 min |
What it costs to run
| A full charge | £0.24 |
|---|---|
| Every 100 miles | £0.56 |
| Electricity for a year | £12.00 |
| The same year by car | £990.00 |
| You keep | £978.00 |
| Pays for itself in | 12 months |
Worked out from the specification
| Battery energy | 864 Wh |
|---|---|
| Energy per mile | 20.1 Wh |
| Charger output | 4.5 A |
| Power to weight | 6.2 W/kg |
| You can carry | 331 lb |
Based on £0.245 per kWh, £0.45 per mile to run a small car, and 2,200 miles a year. Charging is costed at the socket, not at the battery.
100 newton metres from a legal 250W motor
The SAMEBIKE M20 claims 100 Nm of torque, runs front and rear suspension and carries 331 lbs, at £949, down from £1,199.
250W and 15.5 mph: it meets the EAPC rules, so there is no licence, no tax and no registration.
One hundred newton metres, and why that is the number to read
It is the torque of a far more powerful machine, on a motor that stays within the rules.
- Torque is what gets you up a steep hill without a run-up
- It is also what moves a loaded bike away from a junction
- Rated power tells you nothing about that capacity
- And it is what separates two 250W bikes in use
Suspension at both ends
A suspension fork and a rear shock, so both ends of the bike work.
On 20 × 4 inch tyres run soft, that is three stages of cushioning between you and the road. This bike does not fold, which is why the frame can be built as one piece.
Hydraulic brakes on an 89 lb bike
Hydraulic rather than cable, which on a machine this heavy loaded to 331 lbs is necessary rather than optional.
One finger is enough, they do not fade on a long descent, and they keep their bite in the wet.
SAMEBIKE publishes both ranges
Seventy kilometres on the throttle alone, up to 140 with pedal assist, from a 48V 18Ah pack.
Our table carries 43 miles. Both figures are true and describe two ways of riding: the first is the one to hold on to if you plan to let the motor work. Four to six hours for a full charge, which is short for this capacity.
A high-carbon steel frame, and what that means
Most of this catalogue is aluminium. This one is steel, and on a retro-styled bike it is the consistent choice.
Steel damps vibration better and bends before it breaks. It is heavier, which is most of why this bike is 89 lbs, and it rusts, so keep it dry.
A USB charger on the bike
SAMEBIKE fits a USB socket, so a phone charges from the main battery.
Five assist levels, a thumb throttle and a Shimano 7-speed transmission. The saddle sits at 82.5 cm and the total length is 175 cm.
Before the first ride, and who it is for
It arrives nearly built and weighs 89 lbs, so unpacking is easier with two people.
- Fit the front wheel, the handlebars and the pedals
- Bed the hydraulic brakes in at walking pace before the first descent
- Set the rear shock to your weight
- Run the tyres soft for grip, firmer for range
- Allow four to six hours for the first charge
Buy it for the torque and the suspension, with £250 off. It is a legal fat-tyre bike that climbs like a much more powerful one, and the steel frame is what gives it the ride to match the look.
- BRAND
- SAMEBIKE
- CATEGORY
- Fat Tire
- MOTOR POWER
- 250W
- RANGE
- 43 Miles
- SPEED
- 15.5 Mph
- BATTERY
- 18Ah
- WEIGHT
- 89 lbs
- CHARGING TIME
- 4-6 Hours
- BRAKE SYSTEM
- Hydraulic disc brakes
- FRAME MATERIAL
- High Carbon Steel
- MAXIMUM LOAD
- 331 lbs
- INPUT VOLTAGE
- 48V
- TIRE SIZE
- 20 inch
- TORQUE
- 100 Nm
The Samebike M20 Retro Electric Fat Bike states 250W, 43 Miles and 15.5 Mph, and below it is set against the DYU FF500 20 Inch Fat Tire Folding Electric Bike. Every figure the two disagree on is marked. Choose a different bike to compare it with whichever one you are also considering.
6 of 12 specifications differ. View DYU FF500 20 Inch Fat Tire Folding Electric Bike
- What is the benefit of the 100+Nm torque on the SAMEBIKE M20?
- The high torque provides stronger acceleration and improved hill-climbing performance.
- Is the SAMEBIKE M20 suitable for off-road riding?
- Yes, the fat tires and durable suspension offer excellent stability on rough terrain.
- Does the SAMEBIKE M20 have long battery range?
- Yes, it is designed for extended riding distance for commuting and adventure rides.
- What makes the SAMEBIKE M20 unique?
- Its retro-inspired design, powerful performance, and fat tire capability make it ideal for stylish all-terrain riding.
- Are the electric bikes brand new?
- Yes. All electric bikes sold by BikTron are brand new, factory-sealed, and sourced directly from authorised manufacturers and official distributors.
- How do I choose the right electric bike for me?
- Pick a bike based on how you plan to ride. City bikes are great for commuting, folding bikes work well if you need compact storage, mountain bikes handle hills and mixed terrain, and cargo bikes are ideal for carrying shopping or loads. If you are not sure, our Bike Quiz can help.
- Are the batteries original and certified?
- Yes. Every electric bike battery is brand new and original from the manufacturer, with full safety certification and performance testing.
- Are the bikes tested before shipping?
- Yes. Each e-bike goes through a quality check before dispatch, covering electronics, brakes, motor response, and battery performance.
- Do electric bikes come with a warranty?
- Yes. All electric bikes from BikTron include a manufacturer warranty. Duration depends on the brand and model. Most bikes include a 12-month warranty as standard.
- How long does delivery take?
- Standard UK delivery usually takes 2 to 7 business days. Remote areas may take a little longer. You will receive a tracking link by email once your order is dispatched.
- Which payment methods do you accept?
- We accept Visa, Mastercard, PayPal, Apple Pay, Google Pay, and Klarna buy-now-pay-later. All payments are processed securely.
- Can I return my electric bike?
- Yes. You can ride the bike and still return it. Tell us within 30 days of delivery and we book the courier and collect it from your door. Contact us first and we will guide you through the process.
- Do the bikes need assembly?
- Most electric bikes arrive 85 to 90 per cent pre-assembled. You will usually need to attach the handlebars, pedals, and adjust the seat. A basic tool set is often included.
- Are BikTron electric bikes legal to ride in the UK?
- Yes. All bikes sold by BikTron that meet UK EAPC rules (250W motor, max 15.5 mph assisted speed, pedal-assisted only) are fully road-legal. You do not need a licence, tax, or insurance to ride them on public roads. Riders must be at least 14 years old.
- What about the electric scooters?
- Those are different, and the law treats them differently. A privately owned e-scooter cannot legally be ridden on a public road, pavement or cycle lane in the UK, whoever sold it. We sell ours for private land use only, with the landowner's permission, and every scooter product page says so. If you want something you can ride to work, choose an electric bike.
Secure checkout and fast UK delivery on every order.
- Free standard UK delivery on most bikes — 2 to 7 business days
- Express delivery may be available on request
- Full tracking included with every order
- Pay securely with Visa, Mastercard, PayPal, Apple Pay, Google Pay, or Klarna
- 0% finance available through Klarna at checkout
Before you order:
- Delivery is to UK mainland addresses — some remote areas may have a small surcharge
- Most bikes arrive 85–90% pre-assembled and include basic tools for setup
- If you are unsure about sizing or specs, contact us before you buy
Full details at Payment & Shipping.
Simple and fair terms so you can buy with confidence.
- 30-day return window — if the bike is not right for you, send it back
- Ride it. It needs to come back clean, undamaged and complete, with the charger, tools and manual
- A refund or replacement is issued after we receive and check the return
Please note:
- For a change of mind we book the collection and deduct its cost from your refund, and we tell you the amount before we book it
- If we sent the wrong item or it arrived faulty, we cover return shipping in full
- All bikes include a 12-month manufacturer warranty as standard
Full details at Returns & Refunds and Warranty.
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