Motor Rated efficiency:0.83 Rating power (w):1500 Rated rotate speed (r/min):650 Rated torque (n.M):22. Battery Type:silicon Voltage capability:48v36ah Recharged times:500~550 Charged voltage59v+-0.5 Charging time (hours):6-8 Consumption (kw.H):1.5 Weight (kg):46 Controller:18tube Brake assy:f(disc)r(drum) Front shock absorber:straight hydraulic pressure Hub material:f(alloy)r(iron) Stopping distance (m)dry: