Park Tool CC-4.2 Chain Checker Type:Bicycle Chain Tool Checker non-slip rubber base layer minimises

non-slip rubber base layer minimises slippage on smooth surfaces

and reliable mechanical disc brakes for consistent stopping power even in wet

and portability

the Electtrico Ultimate is engineered to meet your high standards

this fork nut boasts longevity and performance

Park Tool CC-4.2 Chain Checker Type:Bicycle Chain Tool Checker non-slip rubber base layer minimisesThe 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