Park Tool CC-4.2 Chain Checker Shimano Tourney we learned that simple wasn’t

we learned that simple wasn’t just better for elite athletes

they have to endure tough tests such as the Paris-Roubaix

PACKED WITH PERFORMANCE FEATURES

Battery Life: Up to 30 hours

Featuring all the tech you need to get you to the finish line

Park Tool CC-4.2 Chain Checker Shimano Tourney we learned that simple wasn’tA 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