Cloudwheel for WowGo AT2, WowGo 3X, and WowGo Knight. You can upgrade your WowGo AT2 and WowGo 3X, and WowGo Knight by yourself easily. The pulley of WowGo AT2 has 40 teeth, the pulley of WowGo 3X and WowGo knight (belt motor) has 37 teeth.
What's in the package?
4 x Cloudwheels
8 x Good quality Bearings
2 x Pulleys with bearings (compatible with WowGo AT2 or WowGo 3X)
2 x Continental Belts (compatible with WowGo AT2 or WowGo 3X)