is it ok to put 275/40/18 on an 18 x 8.5 rim? if its not I would probably get 255/45/18 for the rear and 235/45/18 for the front..thanks.

 

For all of you who keep posting is it ok, or is it safe, or can you, install tire X on rim width XX, why don't you just see what the specs for the tire in question are? I don't mean to sound rude, but it's such a basic and simple task, that seems to be always overlooked.

Most tire manufacturers (well at least any worth putting on a rim and the road) will state what rim width each tire will work within. Its thats easy!

For example, with most 275/40-18 tires, they can be used on rims from 9" to 11" wide, with 9.5" being the industry standardized measurement. So would I put that on a 8.5" rim, no.

With 255/45-18 tires, the majority are designed to work on 7.5" to 9" wide rims with 8" being the industry standardized measurement. So this one I would consider.....



"See, the problem is that God gives men a brain and a *****, but only enough blood to run one at a time."

 

TireRack, too, includes specs for most of the tires they have in their online catalog.

2003.5 G35 Sedan Desert Platinum/Graphite Premium/Sport/Aero/Nav/Winter