How many miles on a rear tyre?

I get 10,000 total miles and 5 race track weekends on a set of Bridgestone S03s.

 

3,000 miles seems a bit low mileage for getting through a set of rear tyres! - When did the car last have it's alignments done?

 

Depends how you drive it. I get around 12000 Kms and it not much but it is what it is

 

It depends on the tread wear rating. The lower the number usually the better the grip. However the lower the number the faster they wear out. For example a tread wear rating of 180 will wear out much faster than a tread wear rating of 450. If you aren't carving up the track every weekend then you may want to look into getting your next set of tires with a harder compound. Or have two sets of wheels. One for track weekends, and the other for everyday driving.

 

My 1991 348tb has factory 355 rims and 295/35/18 Michelin PS2's on the rear. I was shocked when I had to replace mine at 5000 miles. Like you also the majority of the wear was more on the inside of the tire.

 

That's due to overly aggressive negative camber. Sure that helps handling but it sure does eat up tires. I finally got tired of replacing my tires every 5k and dialed out the negative camber. http://www.ferrarichat.com/forum/technical-q-parts-sponsored-algar/356344-348-rear-camber-adjustment.html

 

My rear tyres last maybe just over 3,000 miles. However my rear tyres last from 3-4 years because i dont drive anyone of my cars 3000 miles in one year. My front tyres tyres longer. It has been known that i change my tyres just because of age after 5 years.
So on the whole tyres are maybe one of the cheapest perishable items on my 355s.

 

I have my car set to factory cambers, casters, and toe. Both front and rear tires become slicks within 100 miles of each other (and that is after 10,000 miles of total running.)

I do use tire pressures and temperatures to adjust tire pressure in order to achieve said mileage.

 

Ya I kinda figured that was probably it. 295/35/18 PS2's aren't cheap either. Thanks Ernie.

 

With 265/35 18s, I would consider Michelin Pilot Super Sports, which have a higher wear rating than the PS2s and have won most of the recent comparison tests. Setting camber to factory specs after fitting, of course. You do not want to do it now with your old tires. They are way less expensive than the PS2s, too, so you can probably afford new fronts to match, if they make the correct size fronts.