Motor power:48V,350W/500W/1000W Brushless,Perpetual magnetism Input voltage of battery: AC 220V 50Hz Starting mode:electric start Transmission mode:chain drive Front Brake:disc brake Rear Brakke:drum Front Suspension:Nomal spring shock Rear Suspension:spring shock Acceleratore/Throttle:twist Swing arm:steel Handle bar:alloy Wheel hub:steel/alloy Frame:steel Wheel base:118cm Front tyre size:16*2.5 inches tube tyre Rear Tyre size:16*2.5 inches tube tyre Max speed:35km/h Range: 55km Recharge time:500 times G.W/N.W:75/60kg Charging period: 6-9 hours Packing size:183x58x98cm Container Q'ty:32 PCS/20ft, 80PCS/40HQ