Park Tool Chain Checker CC-4.2 Shifters Through a keen eye and

Through a keen eye and reverence for the beauty in functionality

Only compatible with 35mm clamp stems

Ease of Disengagement: Feature a 12-degree clip-out angle

Pins aligned to the outer surface Smoothness and precision

Park Tool Chain Checker CC-4.2 Shifters Through a keen eye andThe Park Tool CC 4 Chain Checker is a drop in style gauge that measures bicycle chain wear. The laser cut CC 4 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 necessary. The tool works on any 5 to 12 speed derailleur chain (including SRAM T Type, SRAM Flattop, and Shimano XTR 12 speed chains) and is