Park Tool CC-4 Chain Wear Indicator Bike Brand_Giant All New Collimator Lens

All New Collimator Lens

or the backcountry

Cassette: N/A

and its curved shape and forefoot ground contact give you a snappy transition as you take off

Thanks to the OSPW System for SRAM eTap

Park Tool CC-4 Chain Wear Indicator Bike Brand_Giant All New Collimator LensThe 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