I just mounted a set of Michelin Power Pilot 2CT's last week and put 150 miles on them so far. These break loose incredibly easy from a dead stop on the street, especially when crossing painted stop lines in town. I just dropped my bike after the rear tire broke loose and spun out while crossing a painted stop-sign line in my neighborhood, going into a left turn. Tire was fine, hit the paint and immediately broke loose, sending the rear swinging around. As I ride a heavy sport-touring bike, there was no catching it to prevent the fall--I now have nice scratches on my previously pristine side case, and boy am I p1ss3d. I've put 45,000 miles on this bike in 3 years, I'd previously always ridden Avon Azaro's or Storms without any such problems but bought these after reading good reviews. Wish I hadn't, I'll either go back to Avon or try a different brand--these are rubbish! Maybe they'll break in to be better, but I'm pretty unhappy with them right now--avoid these like the plague!