what is the tread life expectancy of the stock dunlop tires? cause i dont think the rear have ever been rotated and its got 20,000 miles and there almost bald...

 

I replaced my Potenzas at 20,000.
I've heard of people going through them in as quickly as 10K, and other keeping them until 25 or 30,000.

Just depends on your driving I guess. If you're looking for suggestions on what to change them out for, check out the wheels / tires section

 

did you buy the car used? why where they never rotated?

 

I've got 3/32"(threadbar) on mine so far @20,000