PLEASE READ BEFORE PURCHASE
1. Can CloudWheel be installed on the Hub Version?
Yes, just select the Hub.
2. Should I purchase a pulley and belt?
Purchasing a pulley and belt is highly recommended if this is your first purchase. But if yours is the Hub version, you don't need to buy a pulley and belt.
* 105mm Riot: available for the Flex Riot、Wave Riot、Atlas series、X1 MAX Riot（ We suggest to add washer to avoid wheel bite）.
* 120mm Riot: available for the Flex Riot、Atlas series.
* Applying 44T pulleys on the Wave Riot requires taking off the motor covers and using the 280-5M - 15mm Belts due to the sizes.
* The customized Flex motor covers are not necessary (but we recommend carrying them) in applying the 120mm CloudWheels on the Flex Riot, you can just take off the motor covers to avoid the grinding.
* Applying any Cloudwheels on the X1 series could cause a serious wheel bite, which is extremely dangerous. We do not recommend the X1 series rider apply any wheels bigger than 90mm in diameter.
It is strongly recommended that you click the guide below to learn more.