Biggest tire size on 16" wheels

[steve_wilwerding]

I have some 16" wheels for my 98 Boxster that I was going to put race rubber. Stock tires sizes are 205/55 and 225/50 - can I go any bigger on stock 16" wheels without rubbing?

[Loren]

Look in the Boxster TSB section - search for "summer". That will get you the TSB titled Summer Wheels and Tires.

That TSB has all the possible wheel, offset , and tire size that are approved by Porsche (and hence will not rub).

[steve_wilwerding]

The TSB doesn't list anything other than 205/55 225/50 for 16" wheels.

[Topless]

The TSB doesn't list anything other than 205/55 225/50 for 16" wheels.

A 245/45/16 would fit without rubbing unless you have extreme lowered suspension. You probably don't want to mount it on that 6" front rim though. A 225/245 stagger would work on stock rims. One of our local drivers was running 275/40/16s on16x9 rims all around to good effect. Fenders were definitely rolled though. This website is very useful for sizing and comparisons:

http://www.tirerack.com/tires/tires.jsp?tireMake=Kumho&tireModel=Ecsta+V710

[steve_wilwerding]

Sounds like I could probably get away with 225/50s on the front, and 245/45s on the rear.

Thanks.