Originally Posted by
stephr1
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30,000???!?! Really? Or did you accidentally slip an extra "0" in there...thx...
No, but that is based on keeping the chain well-lubed and replacing it whenever it shows significant wear. An alternative is to run the chain and cassette together until both are worn out but that would result in reduced cassette life - say 10-20000 miles. Much riding in rainy or snowy conditions with grit being thrown onto the chain and gears would also reduce the life.