Summary

I've always been curious about hubless wheels after seeing one on the back of a custom motorcycle.
This is my version of a wheel for a toy vehicle.
It has an O.D. of 57mm and I.D. of 33mm.
It is a print-in-place design and includes a small hole for adding a shot of WD-40 if desired.
I included two sample frames to show how it can be mounted at different angles.