The 250W hub motor (350W unlock) provides a maximum of 25km/h (35km/h unlock) and a maximum gradient of 30 degrees. 10.4Ah lithium-ion battery (included in the product), the maximum range is 80 km. 20 inch inflatable rubber wheels, suitable for different terrain. 24kg ultra-light weight, quick-folding design, convenient to put in the trunk of the car. Aluminum alloy shell, the maximum effective load is 120 kg. Professional ergonomic design makes driving more comfortable. Suitable for adults and teenagers to have fun. Protection against overheating, short circuits, overcurrents and overloads. Type: 20 inch large frame electric bicycle Dimensions lengthwidthheight: Overall unit: 1550*530*1100mm After folding: 900*430*700mm Operating temperature: -1040 Storage temperature: -2050 Net weight: 24kg Gross weight: 28kg Waterproof degree: IPX5 Maximum speed: 25km / 35km (35km can be unlocked) Transmission: Shiman07 Pure electric range: <45km Support range: <80km Shock absorption: front fork and seat tube shock absorption Brakes: double mechanical disc brakes Charging time: 6 hours Payload: 120kg Wheel material: aluminum alloy Wheel type: solid wheel forming Tire size size: 20*1.95 inch Tire type: pneumatic rubber tire Battery: 36V10.4AH Charger input voltage: 100~240V, 50/60Hz Charger output voltage: DC 42V Charger output current: 2A Charger Output Power: 84W Motor Type: Neck Motor Hall brushless DC rant Motor rated voltage: 36V Motor rated power: 250W CE (can be unlocked under 350W) Motor rated speed: 380rpm