simple. When the rear tires wear out, you buy a new pair.

 

Yes and wide tires like that are very expensive when they wear out. Im sticken with the 225/55 16s on my car. The high preformance tires wear out too fast. My brother in-law just spent almost $1100 on two 295/35/zr18 for his car, that lasted about 7000 miles.