Rear Michelin Pro Race 2s and Krylions both square off after about the same number of miles .. ~1500 miles on the one I have and it's about time to rotate them. Difference between the 2: the Pro Race 2's get cut more and quicker than the Krylions. I have seen no cuts on the Krylions and I ride them on the same routes ..

But they are great tires. That's all I'm buying henceforth.