Park Tool CC-4.2 Chain Checker Tool Model=WCS Gravel Grips 7/8/9/10 speed compatible

7/8/9/10 speed compatible

DT Swiss Grease for star ratchets on DT-Swiss/Hugi hubs

OEM & aftermarket crossbar systems

25 Tire Type Clincher PSI 100 Diameter 26" Width 1

Park Tool CC-4.2 Chain Checker Tool Model=WCS Gravel Grips 7/8/9/10 speed compatibleA 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 drivetrain