Product Description The Zipp ZM900 Freehub for Replacement or Conversion to Micro Spline or XD This freehub body is compatible with Zipp's ZM900 rear wheel hub. It serves either as a replacement part or for converting to a different freehub standard, namely SRAM XD or Shimano Micro Spline. The ZM900 Disc-6-Bolt Hub is used in the 1ZERO HiTOP S MTB wheelset. Product Specifications: Freehub type:4 pawls, 52 engagement points Freehub body material:Aluminum Application:Cross Country, Gravel Technical Information: Shifting stages:12-speed Freehub:Shimano Micro Spline universal | Shimano Micro Spline | Shimano Micro Spline: Freehub:Shimano Micro Spline Freehub:Shimano Micro Spline universal | SRAM XD | SRAM XD: Freehub:SRAM XD Freehub:SRAM XD Manufacturer Number: universal | Shimano Micro Spline | Shimano Micro Spline: 11.2028.062.007 universal | SRAM XD | SRAM XD: 11.2028.062.008 Contents: 1 x Zipp ZM900 freehub 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