Feature: 1. 48V 250W motor specification, strong and powerful. 2. Make your turn into an electric moped, brushless hub motor, noise‑ , and fully enjoy the fun of riding. 3. Suitable for DIY electric bikes. Fits for 24 inch rims. 4. The speed of the motor is 25km/h, which is suitable for riders who like challenges. 5. It is very easy to install and easy to operate. Wonderful conversion accessory for electric . Specification: Item Type: Electric Conversion Set Color: As Pictures Shown Speed: 25 km/h Ebrake Cable Length: Approx. 183cm/72in Fits for 24in Rims Package List: 1 x Motor 1 x Controller 2 x Brake Lever Handle Bar 1 x Throttle Grip 1 x Throttle Grip Clamp 1 x Power Sensor 1 x Motor Cable 1 x Meter 1 x Meter Manual 40 x Spoke 40 x Spoke Buckle.