Originally Posted by KINGZJ

they really don't last very long. They start to swell up about 10 to 16 runs on them and by 20 runs their really bad. What happens is you start chasing your setup compensating for the tires. Sure you can keep running them and for typical club days you'll get by but you'd be faster with newer ones. I usually use one new set per race day and save them for practice days and once they swell they go in the trash.