To make it easier for customers to want to order the accessories specifically for Zealot or Zealot S, Zealot S2 and X.
We put them all together on one page:
105mm Cloud Wheel with Pulley Set: It comes with special pulley to work with the cloud wheels, 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. 105mm cloud wheels fit Zealot, Zealot S, Zealot S2 and Zealot X.
After your first order, you will not need the pulley again if you just want to replace the wheels, you can order the 105mm Cloud wheel set without pulley as below.
Belts:
HTD-260-5M, 15, 20 Belts for Zealot, these belts work for both 96mm wheels and 105mm Cloud wheels. 
Cloud wheel Pulley (Longer teeth than stock pulley)
The pulley from zealot does not work with 105mm cloud wheels directly. If you plan to order the cloud wheels, please select the comb option provided including the pulley. If want to get the additional pulley, you can add this option.
