Quick tire question.

[profusion]

I am currently using 285 35 22 on my CS. I was wondering if I can use a 285 45 22 tires instead. Thanks!

[Loren]

Check the approved tires and wheels TSB in the Cayenne TSB section.

It will tell you what is acceptable based on Porsche's tests.

[profusion]

Found specs for 18-21 inch wheel. I didn't see one listed for a 22 inch wheel. It looks like the overall diameter (for the 285 45 22) will be about 3 inch taller than a stock 18 inch wheel/tire. My current setup is about .80 inch taller compared to a stock 18 setup.

Edited September 14, 2010 by profusion

[Loren]

Usually you do not want to change your rolling radius by more than 3%. Changes that are larger can affect ABS, PSM, and NAV.

[profusion]

Usually you do not want to change your rolling radius by more than 3%. Changes that are larger can affect ABS, PSM, and NAV.

That;s what I thought. I just asked because I saw a great deal on the tires locally. Thanks!