If it does not match, it will easily damage the machine. This set does not include LCD display and controller(No display interface). Note:The ebike is not waterproof. You can’t ride on a rainy day. PLEASE NOTE:The E-BIKE Wheel Kit is not waterproof, so please don’t ride at rainy day Das E-BIKE Wheel Kit ist nicht wasserdicht, also bitte nicht an regnerischen Tagen fahren Special Note: LCD display can not be connected to this kit. (please give us your LCD parameters). 28 36V 250W Ebike Conversion Kit For Rear Wheel Electric Bicycle Hub Motor. 28 250W 36V Electric Bicycle E-Bike Cycling Motor Conversion Kit For Rear Wheel. PLEASE NOTE:The E-BIKE Wheel Kit is not waterproof, so please don’t ride at rainy day Das E-BIKE Wheel Kit ist nicht wasserdicht, also bitte nicht an regnerischen Tagen fahren. LCD display can not be connected to this kit. Note: while connecting the controller to the wires, please make sure that you connect the right colors to the controller. Otherwise, the controller may be broken. Ebike conversion kit for. Spokes and aluminum circle. Twist throttle with 5 star. This electric bicycle kit contains everything needed. To be your bike in a hoche performance. Which provides unparalleled performance and reliability. We use the brake cable with a power cord, our clients can use disc brakes but can not use hydraulic brake? About the battery: the size of amps determines the amount of battery storage, the battery storage determines the length of using time, the battery must match the interface of our controller. When installing, make sure that the wiring is not reversed. Otherwise, it may damage the product. France, Germany, spain, Italy. Feedback is very important to us. It is impossible to address issues if we do not know about them! Please keep the original box or packaging within 15days since item received. Your satisfaction is our ultimate goal. We work hard to earn your trust and future business. A If you receive a defective item, you may return it or ask for a discount. Due to time zones, our reply to your questions may not be immediately. If it’s non-workdays, please kindly be patient and wait till Monday. Transportation does not include.