Product Description The for Spare Parts or Conversion to Micro Spline or XD This freehub body is compatible with Zipp's ZM2 SL rear wheel hub. It serves either as a spare part or for conversion to another freehub standard, namely SRAM XD or Shimano Micro Spline. The ZM2 SL Disc Center-Lock Hub is used in the 1ZERO HiTOP SW MTB wheelset. Specifications:Application:Cross CountryFreehub Body Type:6 pawls (compression), 66 engagement pointsFreehub Body Material:aluminiumModels:SRAM XD: Freehub:SRAM XDGearing:11-/12-speedCompatibility:ZM2 SL rear hub, 1ZERO HiTOP SW rear wheelManufacturer Number:11.2028.061.007 Shimano Micro Spline: Freehub:Shimano Micro SplineGearing:12-speedCompatibility:ZM2 SL rear hub, 1ZERO HiTOP SW rear wheelManufacturer Number:11.2028.061.006Contents:1 x body Manufacturer: SRAM LLC 1000 W. Fulton Market 4th Floor Chicago IL 60607 USA info@sram.com Distributor: SRAM Europe Sales and Services B.V. Paasbosweg 16 3862 ZS Nijkerk Netherlands info@sram.com