fr8cture
I wanna be Dave
I would guess for racing a 4.75 would be better plus all my builds currently use 4.75 8)
That's not the case...anything over 4.75 won't pass...if you're tires factory size is 4.75 and foams push it out to 4.80, you won't pass tech inspection.
it's a screwed up rule because if you're running a factory spec 4.75 tire, you can fire it out to 5.0 with the right foams and still be golden. On the other hand, if you're running a factory spec 4.6 and fire it out to 4.8...you're out!
I am a fan of 4.6x1.5".. It just works at that height and width.