Park Tool CC-4.2 Bicycle Chain Wear Checker | Park Tool CC-4.2 Chain Wear Gauge - Accurate Chain Condition Checker
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Technical Specifications
Key Features
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-13 speed chains
Compatible with single-speed chains
Compatible with SRAM AXS 12-speed chain
Go/no-go gauge indicates 0.5%, 0.75% and 1.0% wear
Made in the USA