Park Tool CC-3.2 Chain Checker – Keep Your Ride Smooth and Save Money

Want to ride smoother and avoid costly bike repairs? The Park Tool CC-3.2 Chain Checker is an economical, must-have tool that helps you prevent drivetrain damage and maintain optimal performance.

A worn chain not only shifts poorly but also accelerates wear on sprockets. The CC-3.2 is a precise go/no-go gauge designed to indicate when your chain reaches 0.5% and 0.75% “stretch”, the recommended replacement points for most chain manufacturers.

How to Use:

• For 9- and 10-speed chains, replace the chain when the 0.75% side fits flat into the chain.

• For 11- and 12-speed chains, replace when the 0.5% side fits.

• The gauge is long, accurate, and features permanent measurement markings for repeated use.

Compatibility:

• Works with most derailleur chains from 5- to 12-speed.

• Always check with your chain manufacturer for specific replacement guidelines.

• For SRAM® AXS 12-speed road chains, use the Park Tool CC-4.

Included Documentation & Support:

• CC-3.2 Instructions (PDF — 130.65 KB)

• Guidance on when to replace a worn chain

Maintain smooth shifting, extend drivetrain life, and protect your investment with the Park Tool CC-3.2 Chain Checker.