Product Description Ratchet and seals for Zipp Cognition V1 NSW rear hubs (rim and disc brake) with Axial Clutch™ freehub. Compatibility:Cognition V1 Generation 2 rear hubs (from serial number 21P81803697*)Cognition Disc V1 rear hubs202 NSW wheels303 NSW wheels404 NSW wheels454 NSW wheels808 NSW wheels858 NSW wheels202 NSW Disc wheels303 NSW Disc wheels404 NSW Disc wheels454 NSW Disc wheels up to 2021 model808 NSW Disc wheels858 NSW Disc wheels up to 2021 model * printed on the hub close to the Zipp logo Manufacturer Number:11.2018.053.000 Only available to European & Russian customers. Contents:1 x Zipp clutch1 x O-ring 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