Zipp Freehub Kit 11/12 Speed XD

Wheel Freehub Kit—(Includes Bearings & Pawls) 11/12 Speed XD—X0 HUBS/RISE 60 (B1)/ROAM 30/ROAM 40/RAIL 40/RISE XX/ROAM 50/60 (B1)

Compatible With:
HU-X0-A1, WH-RAIL-40-A1, WH-RISE-60-B1, WH-RISE-XX-A1, WH-ROAM-30-A1, WH-ROAM-40-A1, WH-ROAM-50-A1, WH-ROAM-50-B1, WH-ROAM-60-B1