I am very interested in ordering the 21" 911 turbo II wheel for a 2012 Cayenne (August allocation). I understand that the 21's will wear more quickly than a smaller size tire (as well as being more expensive to replace), but wanted to get a sense from forum members what their experiences are with the larger tire size. The salesmen indicated that longevity would be between 10,000 and 20,000 miles depending on how aggressive the driver was. Does this seem about right? I love the larger wheel, but not sure I want to replace the tires more than once a year; I drive about 15,000 per year so 20K miles would be fine.

 

I had oem 21 on my gts and had conti tires on them. I drove mostly local and like a grandma 95% the time. I got about 20k miles from them.

 

depending on the way you drive... but 10~15k should be no problem

 

longevity would be between 10,000 and 20,000 miles depending on "how aggressive the driver was".

--+ 1 Same rule applys on the brake pads.

 

I got 18k out of my 21's on my gts. After about 8k I wasn't a fan of the excessive road noise.
The new 21's on my incoming CTT will most likely be the the same.
Not sure which brand will come on it though. Yoko, mich, bridge.....

 

Yup. Watch for the potholes, too. They tend to get em' before the wear does.