This electric rear bike wheel can convert your normal bike to Pedelec bike then you can drive an e-bike effortlessly to work. Features: Conversion kit include: 48V 1000W hub motor with wheel, controller, bike brake shifter, thumb throttle, handlebar cover, coil bobbin, binding post, pedal assistant sensor and controller bag. DIY rear wheel e-bike conversion kit for bicycle wheel. 48V/1000W controller, built-in kinds of cable for necessary parts of e-bike and work with little noise. Compatible with V brake system and disc brake system. Specification: Hub motor: Rear wheel Material: Butyl rubber + Aluminum alloy Wheel Size: 26×1.95” / 27.5×1.75” /29×1.5” (Optiona;) Voltage: 48V Power: 1000W Speed: 50km/h Max torque: 20N.