The FREESKY Alaska Pro M-520 is a full-suspension fat tyre electric mountain bike designed for long-distance riding and demanding mixed terrain. Its 4000W peak brushless rear hub motor delivers up to 160Nm of torque, while two removable batteries provide a combined 48V 41Ah capacity. FREESKY claims a range of 144-257km depending on riding conditions, assist level and battery use, with a charging time of around 6-8 hours. The 26×4.0-inch fat tyres provide grip across gravel, sand, snow, dirt and rough trails, while the lockable adjustable front hydraulic fork and rear suspension help absorb impacts. Four-piston hydraulic disc brakes provide braking control on steep or uneven terrain, and the Shimano 7-speed drivetrain gives riders more flexibility across different gradients. Other features include a thumb throttle, colour LCD display, five pedal-assist levels, cruise control, front and rear lighting and a 6061 aluminium frame. For UK public-road use, the bike can operate in a limited 250W/25km/h mode; higher-performance modes are intended for private land and should not be treated as road-legal e-bike operation.
