Campagnolo 17mm Freehub for SRAM XDR 12V cassettesCampagnolo brand core compatible with Campagnolo / Fulcrum hubs with 17mm axle. Campagnolo 17mm Freehub for SRAM XDR 12V cassettes- Brand: Campagnolo.- Compatible with Campagnolo / Fulcrum hubs with 17 mm axle.- For 11 and 12 speed Sram XD cassette.- Includes spacers to adapt them to the different wheels.Reference: FH-BU020XDR