Hi out there,
cause a customer (tire manufacturer) is threatening to have 30 tires with rims drawn in 3D, I'm already practicing. a rim is finished. Btw. There's no reason to make the rim 100% correct. It's all about th rubber part of the tire.
The inner part of the rim gets its bevel in blender with a modifier. Here's the rim first. When I've finished the rubber part, I'll upload the final result.