CC-4.2 Chain Checker Alivio Leather is a naturally breathable

Leather is a naturally breathable material that provides a unique type of well-being

and smashes

trust in their 60+ year heritage of making the world's most comfortable saddles

yet fit securely during intense activity

reliable in all weather

CC-4.2 Chain Checker Alivio Leather is a naturally breathableThe CC 4. 2 is a drop in style gauge that measures bicycle chain wear. The laser cut CC 4. 2 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 13 speed derailleur chain (including SRAM AXS) and is