Front Fork:Downhill type Suspension Fork Speed: Shimano 7-speed Motor:Wheel otor 48V1000W brushless Max Torque:Max 50NM Battery:48V 15.6Ah Li Battery Range:120km(Assistant Mode) Tire:20"x4,0" Brake:Machinery Disc Brake Bike Size:L1770xW720x1100mm Max Speed:45km/h