Product Description Spare axle with bearings for Zipp Cognition V1 Gen 2 rear hubs (rim brake). Compatibility:Cognition V1 Generation 2 rear hubs (from serial number 21P81803697*)202 NSW wheels303 NSW wheels404 NSW wheels454 NSW wheels808 NSW wheels858 NSW wheels * printed on the hub close to the Zipp logo Manufacturer Number:11.2018.056.000 Contents:1 x Zipp Cognition rear axle2 x 61903 bearing 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