Tools & Lubes Bike Store: Park Tool Bicycle Chain Wear Indicator Tool

Park Tool Bicycle Chain Wear Indicator Tool - CC-3C Reviews

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Park Tool Bicycle Chain Wear Indicator Tool - CC-3C Feature

Made from precision laser cut steel
A go, no go gauge designed to accurately indicate

A worn chain shifts poorly and wears sprockets at an accelerated rate. The CC-3 is a "go, no go" gauge designed to accurately indicate when a chain reaches .75% and 1% wear, the points at which most chain manufacturers suggest replacement. Made from precision, laser cut steel. Fits derailleur and one speed chains including 9 and 10 speed..