Have a set of bogart classic star skinnies with 165/80 radial tires. They are 5 x 4.5 bolt pattern and 15 x 3 1/2 w/ 3.75 backspacing. Ended up with these b/c I thought the guy I bought them off of ripped me off (so I bought another set). These are pretty well used but would be good for the track. Asking $300.