Park Tool Chain Checker Tool

The Cutting Edge Verified independent store

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The CC-3.2 is a go/no-go gauge designed to accurately indicate when a chain reaches .5% and .75% "stretch," the points at which most chain manufacturers suggest replacement For 9 a nd 10-speed chains, replace chain just as the gauge fits the 0.75% side fits flat into the chain - for 11 and 12-speed chain, replace as the 0.5% side fits Long, accurate and features permanent measurement markings Works on most derailleur chains from 5 to 12-speed Show more