Originally Posted by
ricohman
Because they are flat sectioned, and worn. I'm done with not finishing a race because a worn tire flatted to easy. Fresh rubber means less puntures.
Unfortunately I didn't follow my own advice and although I was leading my cat I DNF 11 km from the finish due to a tire with 3400km.
This is one reason that people use multiple wheelsets(1 for racing + 1 for training).