Feature:1. Aluminum Alloy Shell: The controller shell is made of aluminum alloy, which can protect the internal circuit, has good heat dissipation and avoids thermal overload.2. Comfortable Grip: The grip is made of comfortable and soft rubber material, which makes the grip more comfortable and not tired for long rides.3. Practical: This electric bike speed controller set can provide steady and sensitive control of speed which is also easy to install for replacing your old kit.4. Universal: The electric bike brushed controller kit has a wide range of applications that is suitable for electric bikes, electric tricycles, electric motorcycles.5. Other Specifications: The diameter of the grip is 22.2mm, the rated voltage is 24V 36V, and the rated power is 350W.Specification:Item Type: Electric Bike Speed Controller and Throttle GripMaterial: Aluminum alloy and rubberGross Weight: 532g/18.8ozGrip Diameter: 22.2mm/0.87inController Parameters:Rated Voltage: 24V 36VRated Power: 350W.Package List:1 xElectric Bike Speed Controller 1 Pair x Throttle Grip