Features1What Will You Get: This electric bike modification kit includes one motor speed controller, two throttle twist grips, two keys and one three function switch. 2Great Heat Dissipation: The shell of the controller is made of aluminum alloy to protect the internal circuits from thermal overload due to great heat dissipation. 3Rubber Throttle Twist Grip: The throttle grip is made of soft and non slip rubber material, making you more comfortable and not tired for a long ride. 4Multiple Application: The conversion set is suitable for 48V 500W electric bikes, electric tricycles, electric motorcycles and other electric cars to meet your DIY needs. 5Easy Maintenance: Easy to install and operate, the electric bike modification kit greatly enhances the enjoyment of riding and is suitable for cyclists who like a challenge.SpecificationItem Type: Electric Bike Modification KitMaterial: Aluminum alloy, rubberWeight: Approx. 652g/23.0ozPackage List1 xController1 Pair xThrottle Twist Grip2 x Key1 x Switch