Amazon Park Tool  
03-06-2020 04:30 pm
Park Tool CC-4 Chain Checker for Bicycle Chains
Takes the guesswork out of determining when a chain is worn out
Accurately measures wear on all 1/2" pitch bicycle chains
Compatible with all 5-to-12 speed chains
Compatible with SRAM AXS 12-speed chain
Go/no-go gauge indicates .5% and .75% wear
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