How do I know when tires are done for track use. I've got a set of Supercorsa SP's on my R1. The use on the tires were strictly track duty. Specifically I ran 2 weekends (4 days) at Grattan last year on them. I don't have tire warmers so it went through the typical heat up and cool down. I've got plenty of meat on the centers but I fear the edges may be done. It's pretty close to the wear bars. I wasn't very good about keeping tabs on the tire pressure so it looks pretty rough. These are the softest/stickiest tires I've ever spooned on. Also I felt like I made some significant progression in my track riding so I know I've been harder on my tires. But I was still surprised by it's wear. Obviously I need to monitor the tire pressure more. So a few questions for the experts here: Is 4 track days typical for a set of SuperCorsa level tires? Based on the crappy pics, should I get new track tires or do I have a couple more track weekends left on them Anyone see any problems running these on my street bike? I do 75% highway commuting and 25% weekend twisties.I'm planning a long distance trip this summer so I'll be getting a higher mileage tires for the street bike. Otherwise, I'd move these track tires to the street bike and only have to buy one new set of tires at the beginning of this year. If I have to get 2 sets, then I need to make arrangements on selling one of my two kids.