Park Tool  Chain Checker


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Members get an estimated $2.50 (10%) back on this item.
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To alleveiate poor shifting and uneven drivetrain wear, use the Park Tool Chain Checker to quickly and accurately determine the wear and stretch of any chain.


  • Compatible with all derailleur chains
  • Simply insert the Chain Checker's pins into 2 links, lightly press the swing arm gauge, then check the gauge window for an accurate reading
  • For 9- and 10-speed chains, replace chain at or just before the 0.75% readings; for 11- and 12-speed chains, replace at or just before the 0.5% reading
  • Check with manufacturer for specific replacement instructions

Made in USA.

View all Park Tool Bike Drivetrain Tools

Technical Specs

Item #710555
Best Use



5.5 x 1 x .5 inches


.15 pounds

5 reviews with an average rating of 4.6 out of 5 stars

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