Description:User's goal: Suitable for over 14; Electrical machinery horsepower: 180W-250W; The capacity of the battery: 36V/12Ah; Charge time: 5-8 hours; Charge the number of times : About 300 times; The charger inputs the voltage: AC110V-220V; The greatest speed per hour: 30 kilos per hour; The top continues Cheng greatly: 35-45km; Rotate: Roller chain ; The largest loading capacity : 75-100kg; Tire: Aluminium alloy; The size of the tire: 16"; Case and count : 50pcs/20' 135pcs/40"HQ