I did 19,000 kms on a front 19" and 13,000 kms on a rear K60 Scout (the one with the center rubber), not down to the wear bars yet on either front or back, but time to change them. They are noisy and squirmy on the high speed corners compared to other more street oriented tires. I got my moneys worth out of them and will buy them again. I did get 2 flats on the rear after coming off the Dempster from sharp bits of shale but were easy to plug. I do a lot of solo gravel, dirt and mud in remote places and these tires give me confidence. If you do mostly street riding there are better options for sure. Most of these miles were on the Super Tenere with 200 lb rider and 150 lbs of gear at high way speeds (75 mph) on both gravel and pavement.