Features 1、Aluminum Alloy Shell: The controller shell is made of aluminum alloy, which can preserve 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、Replacement Accessories: This controller and throttle grip set is available as a replacement accessory to replace old or damaged parts. 4、Simple Installation: The controller and handle are easy to install, convenient to operate, even for beginners, and can be used with confidence. 5、Universal: This replacement kit is suitable for electric bikes, electric tricycles, electric motorcycles, and has a wide range of applications. Specification Item Type: Electric Bike Controller Throttle Grip Kit Material: Aluminum Alloy, Rubber Gross Weight: 458g / 16.2oz Handle Caliber: Approx.22.2mm / 0.9in Controller Parameters: Rated Voltage: 36V Rated Power: 500W Under Voltage: 31.5±0.5 V Turn Handle: 1-4V Package List 1 x Controller 1 x A Pair of Handlebars