I have some 20" black polished rvm spazios with 255-35-20's on the way--u.p.s. says the 6th of october---the offset is +35 and the offset on my previous set of 18" zo6's is +54 or +56 . I am guessing that they are not stuck out as far so they can ride more towards the center of the wheel well

 

well i asked question to early--injuneer has started thread that has all my answers of what offset is---4th gen cars with 20's---wow if i had read that post earlier i might have bought larger tires then the 255's---we'll see how these do and i'll roast them off with the juice if i don't like them---c-ya

 

i have a set of 335 35 17 on my trans am 95