I chose to buy a new set of tires after my Michelins began to fail after five years of use. The formula was presented by the retailer as the best "price quality" alternative. Every day I go riding. the outcome of two seasons with two wheels removed from the bundle and one wheel with a roll. This rubber is for you if you require tire fitting mayhem because you need to seal a few holes in order to check for delamination. Avoid it if not!