I've had these tires on for about a week now (Avon Sports in a 200). Short 15 to 20 milers didn't show any wear. But after an over 100 miles ride it took off the edge of the tire and left it melted shiny. I scuffed the gloss off with fine sandpaper to see if it would still rub. Sure enough after 120 mile run today... edge is as shiny as it can be. I thought my alignment was off, but I use a set of calipers to check the axle and it's dead on. Avon said the tire is a 202 mm...I thought I'd have enough clearance..guess not. The tires looks good on, I just wish I could keep it on there without having to worry about catstrophic chain, or tire failure.