Zipp 61903 Ceramic Bearing Upgrade Kit 61903 Kit Weight-220g Patented single-clamp lock-on design provides

Patented single-clamp lock-on design provides simple installation and slip-free performance

}SRAM Maven Silver Disc Brake and Lever - Rear Post Mount 4-Piston Aluminum Lever SS Hardware Black A1

Brush it out using a cleaning brush (metal)

front/rear rear (HG 8-11sp) axle/spacing (mm) 12x148 Boost hole 32h color orange weight 286g

Zipp 61903 Ceramic Bearing Upgrade Kit 61903 Kit Weight-220g Patented single-clamp lock-on design providesZIPP Ceramic Bearing Upgrade Kit 61903 Compatible with ZR1 ZM2 hubs, Cognition Rear hubs, Cognition 76 disc front hubs, 176 all rear hubs (incl. 2 ceramic bearings) SRAM Model ID: HU SPP A0 TECH SPECS Material Ceramic Number 61903