Customized Brand New Core is made from a new formula and material resulting in superior product that is MANY times more durable than the stock Cloudwheel core. Please note it: The accessories are for the Flex. If you are using the X1 P Riot, just choose the 4 wheels option and buy the Star-hold pulley for X1 P Riot.
INSTRUCTIONS: 1. For Exway skateboards' 5M drive gear only. 2. Please rotate the wheel and press down hard when installing 3. The belt tension can be adjusted by slightly changing the motor mounting position.