Park Tool FR-5.2 Cassette Lockring Tool

Fits 12-spline tool fittings with an approximate outer diameter of 23.4 mm including:

• Cassette lockrings from Shimano®, SRAM® (including 1x), SunRace®, SunTour®, Chris King® and others
• Disc brake lockrings and lockring adapters with 12 internal splines from Shimano® and other brands
• Top cap of some Rock Shox® suspension fork models including Pike®, Lyrik™, SID®, Revelation™, Reba®, and Paragon™
• Center bore for axle clearance is 12 mm.