The bulk of my miles is on a '92 Cannondale T600 touring bike. With over 83,000 miles on it, we've seen quite a bit together. My round trip commute for the past eight years is a half century, so the miles are adding up quickly. For winter, I switch to a '95 Cannondale H600 hybrid. Given the crap it goes through, in 17,000 miles it's run through about the same number of components as the T600.