• Updated FR-5.2G has longer splines than previous version for better engagement
• Heat-treated alloy-steel construction
• Thin-wall design allows for use with cones/locknuts
• 25.4mm (1") base/head fits FR-series wrenches or vise

Compatible with 12-spline tool fittings with an approximate outer diameter of 23.4mm including cassette lockrings from Shimano, SRAM (including 1x), SunRace, SunTour, Chris King and others. Also fits disc brake lockrings and lockring adapters with 12 internal splines from Shimano and other brands. Also fits top caps for some of some Rock Shox suspension fork models including Pike, Lyrik, SID, Revelation, Reba, and Paragon.