Park Tool CC-4.2 Chain Checker Tool preventing expensive drivetrain damage

preventing expensive drivetrain damage

A worn bicycle chain can cause poor shifting and expensive drivetrain damage

The Park Tool CC-4

The arms are foldable for easy storage when not in use and the rack tilts down for easy cargo door access

Park Tool CC-4.2 Chain Checker Tool preventing expensive drivetrain damageA worn bicycle chain can cause poor shifting and expensive drivetrain damage. The Park Tool CC 4. 2 Chain Checker is a drop in gauge that measures chain wear accurately. It contacts the chain in three places, eliminating guesswork. Compatible with 5 to 13 speed and single speed chains, it indicates wear at 0. 5%, 0. 75%, and 1. 0%, matching manufacturer replacement recommendations. Measures bicycle chain wear accurately, preventing expensive