Car Components Challenge - Wheels

Wheels - I tried to have fun with the treads and the wheel centers were pretty much a compromise with what would look cool and what structurally would be similar to a high performance wheel Wagon Wheel - This looks a little thrown together on purpose. I imagine it would be what I would make if i was a pioneer without a machine shop handy Mountain Bike Tire - standard size tire with drop outs and a little schraeder valve **Wagon Wheel - I was just trying to be creative with that part, I thought as it was it looked cool, but for physics simulation purposes, I added a more accurate model as well in the step, .obj and .png formats specified, it just isn't in the total parts overview, but I understand those aren't considered in the contest since they are so big ***PS all tires are hollow to simulate real rubber tires better