Originally Posted by
ScottCommutes
Also, 21,500 miles is a good run for a drivetrain. I wouldn't feel bad about replacing everything mentioned and then some. Even if the parts have some life left in them, they are getting long in the tooth.
Really? My current Campy Chorus drive train has 86,000 miles on it. I replaced one of the chain rings at 65,000 miles. Other than that just chains and cassettes when they wear out. No way should Campy drive train be worn out at that mileage unless it gets ridden in the rain a LOT.