Motor power: 200W brushless Lithium battery: 10AH36V Wheel size: 28'' Speed: 25km/h Load capacity:75kg Run distance per charge:30km Recharge times: more than 300times Charge duration: 6-8hr Product size:188?9?11cm Net weight 25kg: Gross weight 33kg Material aluminium With 1:1 pedal assistance system With *Shimano* derailleur: (3 speed) Carton size:150?8?8cm