Park Tool Fr-5.2 Cassette Lockring Tool


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Made of heat-treated alloy tool steel, the Park FR-5.2 cassette lockring tool has a one inch base that fits a wrench or bench vise.


  • Thin wall construction allows use without removal of cones and locknuts. The FR-5 has 12 splines that are approximately 23.4mm across.
  • Fits Shimano, SRAM, SunRace, SunTour, Chris King and other cassette lockrings
  • Fits the SRAM XX1 11-speed cassettes
  • Also fits Shimano disc brake lockrings

Made in USA.

View all Park Tool Bike Drivetrain Tools

Technical Specs

Best Use



1 x 1 x 1 inches


2.2 ounces


Alloy steel

33 reviews with an average rating of 4.8 out of 5 stars

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