proper tire size and backspacing
04-25-2004, 03:59 PM
#1
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proper tire size and backspacing
I have asked alot of local wheel/tire places and I get a few different answers to my question. My question is.......what is the proper tire size and backspacing for a 18x7.5 rim on the subies. Please for the love of God can someone give me a contrete answer to my question lol. Thanks for the help.
04-25-2004, 06:14 PM
#2
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Location: St. Louis MO
Posts: 1,245
Car Info: 02 PSM WRX
I would think 225/40/18 (OD would only be 5.3mm off) or 215/40/18 (2.7mm off) would be best and I think you are talking about offset when you say backspaceing and the offset is from 48-52mm. Ive been told 215 is better with a 48mm offset and 225 is better with a 52mm offset to avoid rubing. Here is a link that will let you figure tire OD out for yourself so you know its right https://www.i-club.com/forums/showth...threadid=55297
Last edited by MO REX; 04-25-2004 at 06:27 PM.
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