M1 Features: 1.20"X4.0 Fat tire. 2.Front and rear shock absorber. 3.Easy removable battery and easy to take out. 4.Hidden 36v battery with a big capacity of 12.5Ah. 5.Shimano 7-speed gear system to adapt any condition. 6.Foldable design to easily take with. 7.Brushless gear motor to offer strong power and save energy. 8.Switch between electricity and pedal assistance at will. 9.Long range of 50KM under all electricity and 80KM under pedelec(reference). 10.Front and rear disc brake with power-off system to be safe. 11.Three gears power boost assist system. Gear 1 speed 16KM/H Gear 2 speed 18KM/H Gear 3 speed 22KM/H; Max weight capacity: 120KG