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1

You're doing something wrong. Firstly, good quality chains with proper care schedule should give 4000 km before they wear to 0.5% limit. You getting only 1300-1600 km before chain wearing to 0.75% limit (higher than 0.5%), means there's something wrong in your chain care schedule. My chains are nowhere near "breaking" (assuming this means ...


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I had similar problem with new chain. The entire drivetrain is, by convention, in bad shape: chainring and cassette worn, jockey pulley missing (consecutive!) teeth, rear derailluer slightly askew, and chain is stretched (>1%!). By all rights, the bike should be slipping like crazy, but it doesn't. It runs solidly and smoothly, like a champ! So imagine ...


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There is no way to make your right 8-speed Claris STI index on any 10-speed cassette. It doesn't have the clicks. The most minimal way of doing it would be replace the right STI and the rear derailleur, say both with Tiagra 4700 parts, and then the cassette, chain, and front derailleur. Limping the bike along with an 8-speed claris FD on a 10-speed chain is ...


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