Description:User's goal: 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: 35-45 kilometers; Rotate the system: Roller chain ; Tire material: Aluminium alloy; The size of the tire: 22"; Case and count : 45pcs/20' 110pcs/40"HQ