Hi guys
Bridgestone Potenzas
How much life is still on them.

 

It's difficult to tell how much tire wear you've got there because of the angle of your photo. It's a bit like taking an ariel photo from directly above a building and then trying to determine how tall it is. You need to measure the depth with a depth gauge, or you can try it the old fashioned way with a penny. Also, be aware that Porsches don't always wear tires evenly. Rear tires frequently wear on the inner edges first, so you need to check the tire in multiple spots.

Also, there are many other factors that impact the remaining life of your tires. Alignment, driving style, road conditions, and a few more things can have a dramatic impact on the life of your tires.

 

Looks like about 2/32 of tread lift left judging by the gap from the top of the wear bars (those little bumps in the tread track) to the top of the tread. They're probably getting a bit noisy by now too...had the same set and at that remainder of life, I had done 20K. Estimated life 2k-4K miles left, but if you're driving in wet conditions, it's about time to replace them anyway and for a better set. I liked the Potenzas for touring distance, but they were not that sticky and tended to be a little soft in the sidewalls on hard cornering.

 

and depend of when/how you use the car.
for me it was a sunny day car. so I didn't care have no tread left at all (0/32) as I was never driving when raining nor cloudy

 

I think that's a bad idea no matter what weather is like. The road may get wet for reasons other than weather. Plus, how do you know if the tire isn't on its last leg and about to pop?

You already drive an expensive sports car. Don't skimp on the tires.

 

+1. Don't drive with bald street tires as slick track tire.

 

IIRC new tire tread depth is 11/32". (You can probably look the tread depth of the tire online, too.) Do you have a tread depth gage? I believe you could pick one up at a well stocked tire store or perhaps at a well stocked auto parts store.

Take the miles the tires have covered 'til now and the amount of tread gone and extrapolate how much more tire life the tires have.

That is the rear tire. With even wear like that I get around 20K miles on Bridgestone tires on my 996 Turbo.

 

What Macster said. The Tire Rack site will list new tread depths for your tire and then get at tread depth gauge (

 

I shake my head when I see high-end cars driving with rear tires that are bald. Either they do not look at their car often or just don't care. Leading cause of accidents is tire under-inflation or failure. Actually, nowadays, it may be texting while driving.... BTW, the OP's tires are not bald.

 

Circled are the wear indicators. When the tread is down to this level anywhere across the tire, the tires are done. With pcars the inner treads tend to wear faster than the outer ones. It's quite common to have very good depth on the outside but wear all the way down to the cords on the inside.

 

Thanks