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Upgraded Durability & Traction
Collecting cadence data has never been this easy
won’t crowd your cables
we learned that simple wasn’t just better for elite athletes
Featuring all the tech you need to get you to the finish line
Park Tool CC-4.2 Chain Checker Shimano Tourney Upgraded Durability & TractionA worn bicycle chain causes poor shifting performance and can actually wear out drivetrain components, causing more expensive problems. The Park Tool CC 4. 2 Chain Checker is a drop in style gauge that measures bicycle chain wear. The laser cut CC 4. 2 accurately measures a long section of chain and strategically comes in contact with the chain in three places, quickly and easily taking the guesswork out of determining when chain replacement is
