28 36V LCD Electric Bicycle Motor Conversion Kit E-Bike Rear Wheel 500W/800W. Note: When connecting the controller to the cables, make sure you are connecting the correct colors to the controller. Otherwise the controller may be defective. 28 36V 500W/800W e-bike conversion kit for rear wheel. Spokes and aluminum circle. Step on the gas. This electric bike kit contains everything you need (except battery) to get your bike at high performance. This offers unparalleled performance and reliability. The suits are not waterproof. Please do not drive on rainy days. We use the brake cable with a power cord, our customers can use disc brakes. But cannot use a hydraulic brake. Information about the battery: The power and voltage of the battery you bought should match our set. During installation, make sure that the cabling is not mixed up. Otherwise the product may be damaged. The size of the amplifier determines the size of the battery storage. The battery storage determines the service life. The battery in our pack must match the interface on our controller.