440 as well as select Sram

Built from heat-treated steel

rotate it up and it's off

Cons: Its still a lot of money for a very specific tool for the occasional mechanic

Park CC-4 Chain Wear Indicator Tool PLP|Riding Style 440 as well as selectA worn chain will make your gears shift poorly, create more noise, and wear your cassette and chainrings out more quickly. The Park Tool CC 4 Chain Checker will let you know when it's time to replace your chain so that you can keep your drivetrain running sweet and save some money on replacement parts. Who's this item for: Anybody who wants to keep their bike's drivetrain running smoothly. Chain compatibility: Works with 5 to 12 speed chains. How does