The Park Tool FR-5.2 Cassette Lockring Tool, click to enlarge
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Item # FR-5.2

/ Tools / Cassette & Freewheel

Cassette Lockring Tool

Heat treated alloy tool steel, one inch base fits wrench or bench vise. Thin wall construction allows use without removal of cones and locknuts. The FR-5.2 has 12 splines that are approximately 23.4mm across.

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$7.95

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FR-5.2 Features

  • Fits Shimano®, SRAM® (including 1x), SunRace®, SunTour®, Chris King® and other cassette lockrings
  • Fits Shimano® disc brake lock rings with 12 internal splines
  • Fits the top cap of Rock Shox® suspension fork models Pike®, Lyrik™, SID®, Revelation™, Reba®, and Paragon™
  • Base of tool fits socket or wrench in 1" (25.4 mm)
  • Center bore for axle clearance is 12mm
  • Always use a skewer or axle nut to hold tool firmly in place during removal and installation

NOTE: To determine your cassette / freewheel type and the appropriate tool for it, please see Determining Cassette / Freewheel Type.

FR-5.2 Cassette Lockring Tool

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