1、Rugged and Durable: Made of aluminum, copper and ABS, it is durable and has a long service life. 2、Use Purpose: Suitable for DIY electric bicycles, making your ordinary bicycles become electric bicycles. 3、Brushless Hub Motor: To achieve noise free operation, allowing you to fully enjoy the fun of riding. 4、High Strength and Efficiency: Greatly improve riding pleasure, suitable for cyclists who like challenges. 5、Simple Operation: 5 spoke sizes can be selected, and equipped with a display instrument to display data. Item Type: Electric Bicycle Motor Controller Kit Color: As Pictures Shown Material: Aluminum + Copper + ABS Connection Method: Waterproof Connector Motor: Speed: 25-28km/h Speed: 207-270Rpm Torque: 29-31.2 Opening Size: Approx. 100mm/3.9in Matching Controller: 15A Rim: P19D Moment Arm: M14 Disc Brake: Approx. 160mm/6.3in Motor Structure: Gear Motor Magnet Height: 24H Number of Magnet Poles: 20 Brake Type: V Brake/Disc Brake Universal Controller: MOS Tube: 6 Tubes Maximum Current: 15±1A Speed Setting: 1-4.2V Rated Current: 7A Brake Input: Low Level 1 x Motor 1 x Controller 1 x Thumb Throttle 1 x Speed Assist Sensor 1 x One for Two Extension Cord 1 x Motor Extension Cable 1 x Instrument 1 x Instrument Manual 1 x Manual 1 x Spoke Installation Tool 40 x Spoke 40 x Spoke Cap