That's actually what I got from your last answer. That the freewheel was changed after 20 miles and that the new combo has only lasted for 1000. Again the 20 miles on the old freewheel should not have worn the chain to the extent that you've only gotten 1000 out of the new combo to now.

It does raise the question about which part has worn to where the system is now shot. Is it all the chain or is the freewheel a cheapie that may not have used the best steel tempered to the optimum hardness and toughness? Maybe the freewheel has worn out prematurely and killed the chain along the way rather than the other way around.


DaveSSS, getting back to our little side tracking.... From what you're saying about the roller wear in the Campy chain it sounds like the Park style tool is the perfect quick check gauge for that type of wear. It also suggests to me that for normal chains that both the Park tool and a good ruler are needed in combination to check for chain AND roller wear since both types of wear are highly significant to how the chain sits in the sprocket teeth. The ruler to check for elongation wear and the Park tool to double check for roller wear and factor the two together.