【48V 21AH Battery can be detached and recharged separately】Equipped with a 21AH Li-ion battery, mountain electric bikes allow for longer rides, offering up to 100-120KM range per charge (PAS mode) and 50-70KM in pure electric mode. The detachable battery makes charging easy, whether at home or work (8 hours for a full charge). 【1,000W brushless motor】The powerful 1,000W motor gives you enough power to ride both off-road and on the road. The 1000W power allows for a top speed of 50 km/h (up to 55 km/h under optimal conditions). The high-quality brushless motor also enables adult electric bikes to easily climb hills. 【3 modes & LCD display & Bluetooth APP】PAS mode: pedal-assist vehicles; Cruise mode: meaning pure electric mode; Vehicle mode: use it as a regular exercise vehicle. Speed, assist level, battery range, distance traveled, and all useful information are displayed on the smart LCD screen. 【High-performance professional hybrid vehicles with high material content】. Shimano 21 speeds, reliable dual disc brakes, powerful 1000W motor, allowing you to easily and safely ride up and down hills. The large 29" x 2.1" tires and lockable suspension fork make the electric bike suitable for urban and off-road cyclists.