Tire mileage has more to do with the right wrist and riding habits than it does rubber. This is why I get 5,500-6,500 miles out of a PR2/PR3 and some people get 20,000 (I can't even imagine that). I have a little over 2,500 on my Angels right now, and they will see some serious abuse use this weekend down in Arkansas. Hopefully I can get a couple more weeks out of them. I am suspecting that they will be changed out between 4,500 and 5,500 miles.