Features1Aluminum Alloy: The electric bike controller shell is made of aluminum alloy, which can protect the internal circuit, has good heat dissipation and avoids thermal overload. 2Universal: The electric bike controller and throttle handle set is suitable for electric bikes, electric tricycles, electric motorcycles, which has a wide range of applications. 3Comfortable: The handle is made of comfortable and soft rubber material, which makes the handle more comfortable and you will not be tired for long rides. 4Easy to Install: This electric bike controller replacement is easy to install and it is choice for motor controller replacement. 5Good Performance: This electric bike accessory controller can provide stable and sensitive speed control, which has good performance and long service life.SpecificationItem Type: Electric Bike Brush Controller KitGross Weight: 411g/14.5ozMaterial: Aluminum Alloy RubberDiameter of the Throttle Handle: 22.2mm/0.87inRated Voltage: 24VRated Power: 500WUndervoltage: 200.5VThrottle Handle: 1 to 4VPackage List1 xElectricBikeController1 Pair x Throttle Handle