Chain Checker (CC-4) Gear the Tinker pocket knife is

the Tinker pocket knife is the Officer's knife for tinkers on the move

rear mesh pocket

boulders or gym sessions

Length 14' 6" / 442 cm Width 31

Chain Checker (CC-4) Gear the Tinker pocket knife 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