I have had a couple of issue with these tires. The first set of tires arrived and the tire has an irregular spin but Backcountry promptly sent me a replacement. I slapped on the "new" tire and got a flat within 4 miles of my first ride on them. My entry level Vittorias that I replaced lasted roughly 1000 miles and never once puntured. I know that these things can't be helped but really, after only 4 miles? I have now inspected the tire again and it has a giant slash across the the tire. I love the tire when it's fully inflated as their rolling resistance is amazing, but I just don't have confidence that these tires are going to last anywhere near 1000 miles.