Park Tool CC-4.2 Chain Checker Tool Model=WCS Gravel Grips ATC - Optimized for enduro

ATC - Optimized for enduro and trail riding the Advanced Trail Casing uses a layer of SCT on the sidewalls and a K-Armor belt under the tread area

The blade of the CSB-1 is made up of a fine-grit tungsten carbide coating which makes hundreds of fine abrasions as it passes over carbon fiber resulting in a clean precise cut

Fits tires up to 5" wide

DC - Dual Compound tread provides a lower rolling resistance center paired with extra grip for the corners

Type Tubeless Size 700x40 ISO 622 Bead TBLS - FOLD Tread/Sidewall Color Bk/Skn PSI 50 Weight (Grams) TPI 120 Durometer Features Reflective Sidewall

Park Tool CC-4.2 Chain Checker Tool Model=WCS Gravel Grips ATC - Optimized for enduroA 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