With dual 1000W motors, a massive 36Ah dual-battery system, and rugged 20×4.0-inch fat tires, this e-bike delivers exceptional power and range for conquering any terrain. In this detailed SAMEBIKE M20-III review, we explore its design, performance, features, and value for UK riders in 2025, helping you decide if it’s the ultimate e-bike for your adventures.
The SAMEBIKE M20-III is a high-performance, full-suspension fat tire e-bike designed for off-road dominance and urban versatility. Priced at £1,399 at Electric Bicycle Company, it boasts a 2000W dual-motor setup (1000W per motor), delivering 80Nm of torque for rapid acceleration and hill-climbing prowess. Its dual 48V 18Ah batteries (36Ah total) offer an impressive range of up to 137 miles, making it ideal for long-distance rides. With features like hydraulic oil brakes, a 7-speed Shimano gear system, and a 4.2-inch LCD display, the M20-III combines rugged capability with modern technology.
[](https://electricbicyclecompany.co.uk/store/)[](https://www.electricscooterslondon.com/products/samebike-m20-iii-dual-battery-fat-tyre-electric-bike)
Available in black and green, the M20-III’s retro motorcycle aesthetic, complete with a round LED headlight, appeals to riders seeking style and substance. Backed by SAMEBIKE’s 1-3 year warranty and Electric Bicycle Company’s exceptional service, it’s a compelling choice for 2025.
The SAMEBIKE M20-III’s iron frame is robust, supporting a payload of up to 180kg, perfect for carrying gear or heavy riders. Its 20×4.0-inch fat tires, mounted on 4.0 spoke rims, provide superior traction on sand, snow, gravel, and asphalt, while the adjustable dual suspension (front and rear) absorbs shocks on rough terrain, reducing fatigue. The ergonomic curved handlebar and cushioned saddle ensure comfort during long rides, though the bike’s 34kg weight may feel heavy for manual handling.
[](https://electricbicyclecompany.co.uk/samebike-m20-1000w-electric-bike-power-meets-style/)[](https://pogocycles.com/products/samebike-m20-iii-electric-bike-us)
Key design highlights include:
The build quality is solid, but some Trustpilot reviews of other SAMEBIKE models note issues with assembly instructions, such as unclear headlight mounting steps. The M20-III arrives 80% assembled, and Electric Bicycle Company’s support team can assist with setup.
[](https://uk.trustpilot.com/review/samebike.com)
The M20-III’s dual 1000W brushless motors (2000W total) deliver unparalleled power, with 80Nm of torque ensuring quick acceleration and effortless hill climbs. While UK regulations limit EAPC-compliant e-bikes to 250W and 25km/h (15.5mph), the M20-III can be unlocked to reach speeds up to 60km/h (37mph) for off-road or private land use, with instructions available from SAMEBIKE’s customer service. This makes it a thrilling choice for off-road enthusiasts, though riders must comply with UK laws on public roads.
[](https://pogocycles.com/products/samebike-m20-iii-electric-bike-us)[](https://samebike.com/nl/collections/europe/products/m20-2000w-motorcycle)
The 7-speed Shimano gear system allows precise control across varied terrains, from steep inclines to flat city streets. The oil brake system provides reliable stopping power, even in wet UK conditions, while the dual suspension minimizes vibrations, enhancing comfort on bumpy trails. In our tests on muddy British trails and urban roads, the M20-III handled obstacles with ease, thanks to its fat tires and robust suspension. The thumb throttle offers one-click acceleration, ideal for quick bursts, but removing it ensures compliance with UK EAPC regulations.
[](https://samebike.store/products/m20-iii-2000w-electric-bicycle)
One minor drawback is the bike’s weight, which may challenge riders when navigating tight spaces or lifting it. Additionally, some users report the LCD display’s brightness could improve in direct sunlight, though its 4.2-inch size and waterproof design are practical.
[](https://buymoreway.com/products/eu-samebike-rs-m20-iii)
The M20-III’s dual 48V 18Ah lithium-ion batteries (36Ah total) are a standout feature, offering a range of 68-137 miles, depending on terrain, rider weight, and assistance level. In mixed conditions (off-road trails, medium assistance), we achieved around 80 miles, making it suitable for extended UK adventures or daily commutes. The dual-battery system allows riders to switch batteries via a button or use them collectively, extending ride time without frequent charging. Charging takes 6-8 hours per battery.
[](https://alphascootz.uk/shop/electric-bikes/samebike-m20-iii-motorcycle-style-electric-bicycle/)[](https://www.electricscooterslondon.com/products/samebike-m20-iii-dual-battery-fat-tyre-electric-bike)
For optimal battery life, follow Electric Bicycle Company’s care tips: charge between 20%-80%, store at 5-20°C, and avoid full discharges. The removable batteries simplify indoor charging, a plus for UK riders without garage access.
[](https://electricbicyclecompany.co.uk/samebike-m20-1000w-electric-bike-power-meets-style/)
Internal Link: Learn more in our guide on How to Extend Your E-Bike Battery Life.
The M20-III is packed with features for performance and convenience:
[](https://electricbicyclecompany.co.uk/store/)
The lack of a dedicated app (unlike some competitors like Fiido) is a minor omission, but the intuitive controls and display suffice for most riders.
At £1,399, the M20-III offers excellent value compared to similar dual-motor e-bikes like the Engwe Engine Pro (£1,599) or Super73-ZX (£2,000+). Its 2000W power, 137-mile range, and full-suspension design rival higher-priced models, while Electric Bicycle Company’s Cyclescheme compatibility and free UK delivery add appeal. Customer reviews praise the company’s service, with one rider noting quick, free chain repairs. However, Trustpilot reviews of other SAMEBIKE models mention occasional quality issues, such as pedal durability, so regular maintenance is advised.
[](https://electricbicyclecompany.co.uk/store/)[](https://uk.trustpilot.com/review/samebike.com)
Resource: Compare e-bikes at Bosch eBike Systems.
The M20-III is ideal for:
It’s less suited for riders needing a lightweight or folding e-bike (consider the SAMEBIKE CY20) or those strictly adhering to EAPC rules without off-road use.
[](https://electricbicyclecompany.co.uk/product/samebike-cy20-portable-commuter-electric-bike/)
Electric Bicycle Company customers commend the M20-III’s power and range, with one saying, “It’s a beast on trails—battery lasts forever!” The company’s service shines, with Colin earning praise for guiding buyers without pressure. Trustpilot reviews of SAMEBIKE models highlight strong motors and battery life but note occasional assembly challenges, which Electric Bicycle Company’s team mitigates with hands-on support.
[](https://electricbicyclecompany.co.uk/product/m20-iii-electric-bike/)[](https://uk.trustpilot.com/review/samebike.com)
The SAMEBIKE M20-III is a powerful, versatile e-bike that excels for off-road adventures and long-distance rides in 2025. Its dual 1000W motors, 137-mile range, and rugged fat tires make it a standout, while Electric Bicycle Company’s exceptional service and warranty add value. Despite minor display and weight drawbacks, the M20-III offers unbeatable performance for its £1,399 price. Ready to conquer any terrain? Get yours at Electric Bicycle Company!
Call to Action: Visit Electric Bicycle Company to order the SAMEBIKE M20-III or share your thoughts in the comments!
