cnc837

I'm looking for Extreme Performance Summer tires on Tirerack and none of the really high end tires come in 235/50/R17. Has anyone tried 245/45/R17 on their rear 17" OEM rims? These are a lot more common size it seems like. Can you vary the 50 to 45 ? Does that just leave more wheel well showing? Will 235 work on the 8" wheel?

davidv

iTrader: (2)

8-inch wheels offer lots of variables. You can go anywhere from 225 to 245 mm.

cnc837

What about going 45 rather than 50? Does that just leave more of a gap between the tire and the fender?

dhays

iTrader: (10)

There are any number of tire calculators on the net that will tell you the overall diameter of various combinations. Not rocket science, you just have to spend a couple minutes searching and reading.

A 245/45-17 tire will have about .6 inch smaller diameter than a 235/50-17 tire. Since it is the radius of the tire that determines gap between tire and fender, that would give you .3 inch more of a gap. So between 1/4 and 1/3 of an inch.

Gingervitis526

iTrader: (19)

I think I went with a 255/45/17 on my stockers... not exactly sure though

neal@tirerack

Pretty much stuck, like the G35, with that 8" wheel in the back. Haven't found a 255 with the right diameter and the 265's that do fit require a wider wheel. That wheel limits you to oem sizes.

ydlee

What would happen if I went with 225/50/17 or 235/50/17 or with 45 series? Will it work?

neal@tirerack

About an inch shorter than what should be on there.