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Old 10-04-12, 08:13 AM
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Kimmo
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It's only a matter of concern if you can't get your indexing to work.

On a 7spd system, I think it'd take an awful lot of play to be a problem.

As for the wear guide, they're not so hot IMO; they measure wear both on the pins and rollers, and only the former matters (I scored some DA and Ultegra chains with plenty of life left - thanks to a wear gauge, I bet). Tension the chain and use a 12" ruler.
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