Freehubs designed to fit our GXC Supadrive, MTC Supadrive, RS2 Supadrive and RD2 Supadrive hubs.These are available in Shimano Road HG type and Sram XDR type spline compatibility, and are manufactured from 7075 alloy. Shimano Road HG type freehubs also come with Anti-Bite steel inserts.The GXC and RD2 Supadrive HG Freehub is suitable for Road width 11 speed cassettes.