Designed for 12 spline 23.4mm diameter tool fittings – the most common tool fitting found on 7-12 speed cassette lockrings, and can also be found on some disc brake lockrings and Rock Shox® suspension fork top caps. Made from heat treated alloy tool steel. Thin wall construction allows use without removal of cones and locknuts.
The FR-5.2 features the same tool pattern as the FR-5, with deeper splines for a greater range of compatibility – any component that is compatible with the FR-5 is compatible with the FR-5.2.