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CC-3.2 - Chain Checker
A worn bicycle chain can cause poor shifting and excessive wear to other components. The CC-3.2 is a "go/no go" gauge designed to accurately indicate when a chain reaches .5% and .75% wear, the points at which most manufacturers suggest replacement. Compatible with most single-speed and derailleur chains*, including Shimano XTR 12-speed chains.
*Not compatible with chains that feature nonstand roller sizes such as SRAM Flattop or SRAM T-Type chains--see Park Tool CC-4.
A worn bicycle chain can cause poor shifting and excessive wear to other components. The CC-3.2 is a "go/no go" gauge designed to accurately indicate when a chain reaches .5% and .75% wear, the points at which most manufacturers suggest replacement. Compatible with most single-speed and derailleur chains*, including Shimano XTR 12-speed chains.
*Not compatible with chains that feature nonstand roller sizes such as SRAM Flattop or SRAM T-Type chains--see Park Tool CC-4.
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