Motor 24V- 60V 250W - 1000W motor without carbon brushes. The torque and high efficiency. Motor thin Easy to install, control 24V / 36V / 48V. Select the pressure up stream 35 ampere power brake return batteries. (Regenerative brake) when you grip the brakes every time. Energy moving vehicle is converted into electricity to recharge the batteries as well. Suitable for use down the hill or mountain, or even on the brakes, but the flat plain simple plug replaceable military grade. And a more programmable computer.