Park Tool - CC-4.2 Drop In Chain Checker S3-Size-9L-36L 6mm (315 grams)

6mm (315 grams)

WEIGHT: From 1894 g

5mm and the bracket is compatible with Profile Design's existing risers which add up to 138

Kids sizing: 4

M8310 and M826

Park Tool - CC-4.2 Drop In Chain Checker S3-Size-9L-36L 6mm (315 grams)PARK TOOL CC 4. 2 DROP IN CHAIN CHECKER A 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