Zipp CeramicSpeed Bearing Kit for Sub-9/Hubs | Ceramic Bearings & Performance Size_8` x 9-1/4` • Balances the padded comfort

• Balances the padded comfort required by trail riders with the sleek profile desired by aggressive riders and racers

and modern electronic shifting performance

- Easy installation with included hardware

Constructed from high-strength polyester and reinforced with wear-resistant padding

Crafted with a meticulous blend of innovative materials and engineering

Zipp CeramicSpeed Bearing Kit for Sub-9/Hubs | Ceramic Bearings & Performance Size_8` x 9-1/4` • Balances the padded comfortUpgrade your cycling performance with the Zipp CeramicSpeed Bearing Kit the ultimate solution for reduced rolling resistance and enhanced efficiency on your Sub 9 and Super 9 hub shells. This high performance bearing kit is engineered for serious cyclists and competitive racers seeking measurable wattage savings and superior durability. Premium Materials & Advanced Engineering Manufactured with aerospace grade ceramic, these Zipp CeramicSpeed bearings