CC-4 Chain Checker Saddles HIGHEST SECURITY DISC-STYLE CYLINDER is

HIGHEST SECURITY DISC-STYLE CYLINDER is pick and drill resistant

Like all ISM saddles

Extra life

The new 12-speed XT cassette comes with a complete makeover from its 11-speed predecessor

Quick and easy assembly

CC-4 Chain Checker Saddles HIGHEST SECURITY DISC-STYLE CYLINDER isThe CC 4 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 knowing when chain replacement is necessary. A worn chain will cause poor shifting as well as accelerate drivetrain wear. The tool works on any 5 to 12 speed derailleur chain (including SRAM AXS) and is