105mm CloudWheels with Pulley Set: It comes with special pulley to work with the cloudwheels, also the motor cover is slightly different from the default cover. If you order the cloud wheel set 1st time, please make sure you get this option so you can make it work together. 608 2RS high speed bearings are pre-installed in wheels, 6903 bearings are pre-installed in the pulley as well.

Available in purple