20"Aolly frame;Aluminum alloy suspension fork;shimano 7-speed;Mechanical dise brake;KENDA 20“*4.0 Tire;Battly LG 21700 cell double20AH;charge time7-8H;ANNAIDA36V350W  mid-motor;Mileage≥160km;Max speed ≤25km;torque sensor;LCD display;led light;IP65，L1920*W800*H1200;