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  • Park Tool Chain Checker
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Park ToolChain Checker
Sale 5% Off$10.40 $10.95

Item # PAR002X

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Item # PAR002X

Know the State of Your Chain.

The easiest way to ensure that your shifting is the best it can be and prevent unnecessary wear on the rest of your drivetrain is ensuring that your chain is not excessively worn. Park Tool offers the CC-3.2 which is by far the easiest to use chain wear measuring tool that is so quick to use we should all be embarrassed at how little we check our chain's wear. The CC-3.2 is a go/no-go gauge that accurately indicates when chain wear reaches 0.5 and 0.75-percent, the points where most manufacturers suggest replacement. Simply put the end of the chain checker in the chain and see if you can place the permanent measuring marked ends into the chain links. For 1 through 10-speed chains, replace it if the gauge on the 0.75-percent side fits into the links. For 11 and 12-speed chains, replace when the 0.5% side fits. The CC-3.2 will quickly save you from frustration and money.

  • A chain checker that measures wear on all 1/2in. chains
  • Go/no-go design is quick and easy to use
  • Ensures precise shifting and undo excessive wear
Tech Specs
Tech Specs
1/2in. pitch chains
Recommended Use
bike maintenance
Manufacturer Warranty
limited lifetime

Reviews & Community


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Check your Chain!

  • Familiarity: I've put it through the wringer

Chains are cheap. Don't run a crap drivetrain because of a crap chain, check it out, and swap when you need

Check your chain often!

  • Familiarity: I've used it several times

If you're putting in the miles, you need to be using this tool all the time. The more you use it to check chain wear, the more money you save in the future by avoiding wearing your whole drive train down. This is a must have tool.

Avg. ride time: 4m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

great tool

    never needs adjusting! super easy to tell if you are in danger of messing up expensive cassettes.