£549.00 GBP
£1,049.00 GBP
£1,199.00 GBP
£1,999.00 GBP
from
£1,545.00 GBP
£749.00 GBP
£1,149.00 GBP
The FREESKY Alaska Pro M-520 Electric Bike is a high-power fat-tyre electric bike engineered for private-land performance, long-range endurance, and all-terrain stability. Featuring a 4000W peak brushless rear hub motor, 160Nm torque and a large dual-battery system, it delivers powerful traction and confident control across demanding surfaces.
Built around an upgraded 6061 aluminium frame, the Alaska Pro M-520 combines a 48V 45Ah dual lithium battery system, dual suspension, 26 x 4.0-inch fat tyres, Shimano 7-speed gearing and 180mm 4-piston hydraulic brakes for strength, stability and controlled off-road/private-land capability.
The 4000W peak brushless rear hub motor provides strong acceleration, powerful climbing support and controlled performance on private land. With 160Nm torque, the Alaska Pro M-520 is designed for demanding Terrain where traction, stability, and sustained power delivery matter.
A speed sensor, 0–5 pedal-assist levels, a Shimano 7-speed transmission, and a thumb throttle provide flexible control across different private-land riding conditions.
The 48V 45Ah dual lithium battery system combines an 18Ah upper battery and 27Ah lower battery, giving a total capacity of 2160Wh. Manufacturer range estimates are approximately 158–282 km under suitable conditions.
The 26 x 4.0-inch fat tyres provide a wide contact patch for grip and stability across varied private-land surfaces. The front and rear dual suspension system includes a lockable, adjustable front hydraulic downhill fork and rear suspension to help absorb impacts and improve comfort over rough ground.
The LCD colour display shows key ride information including speed, battery level, mileage, headlight status and pedal assist level. The front headlight supports visibility during use.
The FREESKY Alaska Pro M-520 is equipped with 180mm 4-piston hydraulic brakes for strong stopping power and controlled braking modulation. The upgraded 6061 aluminium frame, KMC chain, heavy-duty kickstand, and reinforced component set support long-term durability.
The bike is UL 2849 certified, and the battery system is tested to meet UL 2271 safety requirements.
The removable dual-battery design allows convenient charging and secure storage away from the bike. The LCD colour display, multiple assist levels and thumb throttle give riders clear control over performance and battery use.
The included 3A smart charger supports the 48V battery system and charges the battery in approximately 6–8 hours. A power cable is included.
| Motor | 4000W peak brushless rear hub motor |
|---|---|
| Peak Motor Power | 4000W peak output |
| Torque | 160Nm |
| Controller | 48V / 30A |
| Sensor | Speed sensor |
| Pedal Assist | 0–5 levels |
| Throttle | Thumb throttle |
| Battery | 48V 45Ah dual lithium battery system |
| Battery Configuration | 18Ah upper battery + 27Ah lower battery |
| Battery Capacity | 2160Wh |
| Estimated Range | Approx. 158–282 km |
| Charging Time | Approx. 6–8 hours |
| Charger | 3A smart charger |
| Transmission | Shimano 7-speed |
| Chain | KMC chain |
| Tyres | 26 x 4.0-inch fat tyres |
| Suspension | Front and rear dual suspension |
| Front Fork | Lockable, adjustable front hydraulic downhill fork |
| Brakes | 180mm 4-piston hydraulic brakes (front & rear) |
| Frame | Upgraded 6061 aluminium frame |
| Display | LCD colour display |
| Lighting | Front headlight |
| Kickstand | Adjustable heavy-duty aluminium kickstand |
| Seatpost | 30.9 x 350mm alloy seatpost |
| Bike Weight | 40.8 kg |
| Max Load | 136 kg |
| Total Length | 194.3 cm |
| Wheelbase | 120.4 cm |
| Total Height | 111.8 cm |
| Seat Height | 80–103.4 cm |
| Seat Tube Angle | 73° |
| Reach | 45.7 cm |
| Standover Height | 51.8 cm |
| Wheel Diameter | 67.8 cm |
| Rider Height | 168–203 cm |
| Certification | UL2849 certified; battery tested to UL-2271 |
| Colour Options | Black, Blue, Green |
| In the Box | Electric bike, battery, charger, power cable, user manual, mudguards, rear rack |
Electric Scooters London is a UK specialist retailer offering expert advice, UK-based support and dependable after-sales service. We supply carefully selected electric bikes designed for reliability, performance and long-term ownership.
This electric bike exceeds the UK Electrically Assisted Pedal Cycle (EAPC) limits due to its motor power and/or assisted speed capability. Under UK law, e-bikes with a motor over 250W or capable of assisting at 15.5 mph are classified as motor vehicles. They cannot be used on public roads, cycle lanes, pavements or other public spaces without full type approval, DVLA registration, insurance and a valid driving licence.
This model is supplied strictly for off-road/private-land use only, with the landowner's explicit permission. Use on publicly accessible land is not permitted.
Images or videos may show usage outside the UK and are for illustration only.
By purchasing and using this product, the customer accepts full responsibility and agrees to hold Electric Scooters London harmless from any claims, penalties, or damages arising from misuse.
