unfortunately i have been the victim of some pleb listing an item wrong on Ebay so i have a 525 rear sprocket and a 520 chain and front sprocket. I'm looking to get one of the quick change carriers if any one is looking for a new rear sprocket that has a quick change carrier that they wold like to do a swap or a new 525 pitch chain that would like to swap for a red DP 520 chain
