The dependable design of our FR-5.2 lockring tool with an added 5 mm guide pin to stabilize the tool when used with quick-release hubs. The FR-5.2G is designed to fit the most common tool fitting found on 7-to-12 speed cassette lockrings

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