Park Tool Cassette Lockring Tool (FR-5.2)

The Park Tool Cassette Lockring Tool (FR-5.2) is designed for 12 spline 23.4mm diameter tool fittings. The FR-5.2 is most commonly used on 7-12 speed cassette lockrings. Made from heat treated alloy tool steel. Thin wall construction allows use without removal of cones and locknuts.

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