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Ensure your bike is equipped with the best
It allows you to precisely adjust the preload tension on the bottome bracket bearings
Low-light visibility Reflective branding improves visibility in dim conditions
Seven Lighting Modes: Choose from options like the Daytime Flash Mode for high visibility or the 300-hour Femto Mode for extended use
Park Tool CC-4.2 Chain Checker Type:Bicycle Chain Tool Checker Ensure your bike is equippedThe 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