Erik, I just started another tire thread specifically for tires sizes. Didn't see this. For those of us 3D printing it would be nice to have a resource for the tire sizes also so that we can design to them. I would request that that would be great information to add.
Great idea, Norm. This is something I didn't even consider. When I post some more tires, I will get out the caliper and post along with the tires and sources.