2500 miles and they were poop. Got the Diablo III's on there now. I like them much better. Depends how often you ride I guess. I ride 300 plus miles a week (recreation not commute) with long stretches of highway to get to the mountains. The Diablo IIIs are as good as the SC grip wise in this setting but have a fantastic wear life. I flat spotted the center of the first set of SCs quickly just getting to riding spots. Some will say the SC has better grip well then your a hell of a street rider if your pushing that hard to over limit a better street tire which if the Diablo III. Im no where near that brave or skilled off track. Track, I like the Diablo slick.