Product Description Replacement freehub body (11-speed) by Zipp for 177 and 176 hubs. Specifications:Application:Road, Triathlon & Time Trial, CyclocrossFreehub:Shimano Road, CampagnoloGearing:8-/9-/10-/11-speed, 9-/10-/11-/12-speedFreehub Body Type:177Technical Information:Freehub Body Material:aluminiumBearings:Steel (61803 / 6803)Compatibility:177 hubs (as of 2015)177D Disc hubs (as of 2015)176 hubs (as of 2018)176D Disc hubs (as of 2018)also compatible with Super 9 Track Discalso compatible with 900 Track DiscModels:Shimano: Freehub:Shimano RoadGearing:8-/9-/10-/11-speedNote:Assembly of 8-/9-/10-speed cassettes on Shimano Road freehub bodies requires a 1.85 mm spacer.Manufacturer Number:11.2018.061.000 Campagnolo: Freehub:CampagnoloGearing:9-/10-/11-/12-speedManufacturer Number:11.2018.061.001 Only available to European & Russian customers. Contents:1 x Zipp 177 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