The Park Tool FR.2G Cassette Lockring is a good quality tool made of heat- treated alloy tool steel which will last for a lifetime. It also has a 5mm guide pin 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, including models made by Shimano®, SRAM®, and others. Also fits disc brake lockrings and lockring adapters with 12 internal splines. Thin wall construction allows use without removal of cones and locknuts. The 1" hexagonal base can be used in conjunction with a socket, wrench, or bench vise.

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