Skate board wheel experment

MembershipIf you wanna sell 3D Prints of my models, or just support my work, please purchase a commercial license. THANKS!! So to start out, I know nothing about skateboarding. This was purely just for fun, and idk if they are better, worse, or the same as normal wheels. My design uses 3 parts: the main body, a TPU tread that slips over it, and finally an end cap that gets glued on, locking the TPU tread in. My testing seemed promising, although I think I need some skateboard bearings; I have been using engineering bearings. I used PETG for the main body and TPU for the treads.