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A worn chain shifts poorly and wears sprockets at an accelerated rate. The CC-3.2 is a go/no-go gauge designed to accurately indicate when a chain reaches .5% and .75%, the points at which most chain manufacturers suggest replacement. The CC-3.2 is long, accurate and features permanent measurement markings.

• For 9 and 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.
• Works on all 1/2″ pitch chain, from 1 to 12-speed. Check with manufacturer for specific replacement instructions.