Park Tool CC-4.2 Chain Checker Tool Model=WCS Gravel Grips The blade of the CSB-1

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

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

2 and 3mm spacers

Combination of liquid sealant and butyl technology ensures excellent pressure hold

Three velcro straps attach the Caddy to the top tube Total Volume 30 Color Black Waterproof Yes Number of Compartments 2 Access Style Zipper Defined Color Black

Park Tool CC-4.2 Chain Checker Tool Model=WCS Gravel Grips The blade of the CSB-1A 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