i think i got between 8-10 outta my rear, 11k out of the front. ill have to dig out the service records to see what it was. i got down to the cords, did rear tire and brakes at the same time. But i do tend to get on it a lot, the brakes were another issue. Ive got some time at the drag strip on the current tire as well. its not smooth in the center yet. once i figure out when i got the tire on i could tell you how long its been there.