This is a perfect example of the power of 3D printing:
A friend came to me for a solution after someone drove over his RC car. He couldn't fined a propper rim anywhere so after some scanning and reverse-engineering he now has a file and can print as many as he needs, and so can you! enjoy!
*The STL is from a proper model, not directly from a scan. It has BY DEFINITION circular symmetry, perpendicularity and so on…
**I think I got all the relevant dimention in the pics, but if I missed anything please tell and I'll happily add it
The author hasn't provided the model origin yet.