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Old 03-01-2016, 11:13 AM   #14
Racer Boy
Racer Boy
 
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Join Date: Sep 2015
Location: Seattle, WA
Posts: 946
Quote:
Originally Posted by JayG View Post
7" are fine, at least with my Dunlop Star Spec and Sumi HTR ZIII in 225/45-17
Go to Tirerack an d look at the tire specs and you will see that the rim width range is 7"-8" or 8.5" for 225/45

I tracked both and no rollover issues
Quote:
Originally Posted by steved0x View Post
Stock 7" rims, and I have run on those rims in 225/45/17:

Sumitomo HTR Z III
Hankook R-S3
Toyo R888

No problems whatsoever and have never had any trouble getting them mounted. The first one out of these was the Hankook which I got from Tire Rack and they confirmed it was an approved size for the Boxster on a 7" wheel.

I just did a quick check on Tire Rack and all 3 of the tires listed above are approved on a 7"-8.5" wheel, with the section with the various tire measurements being made on a tire mounted to a 7.5" wheel.

Each tire brand may be different so that may be why your tire didn't list 7" as an approved wheel width?
I found the 7.5" recommendation in a generic chart I found somewhere.

Thanks for the information!
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