Depends on which ones you're talking about. My 18" track set were 9.5" front and 10" rear with 275/35/18 front and 285/35/18 rear. I ran those because of a race class I ran in when I bought the wheels that limited me to 285 max tires. I have also had a set of 19" Forgestars and 20" as well over the years. Don't remember the specs on those though.

What size are/were the tires on your forgestar wheels? and what are/were the size specs on your wheels? I'm interested in getting a set but right now i'm trying to figure out what i want and need some options