Zipp 858 NSW Rear Wheel – 700 12 x 142mm Center-Lock XDR Tubeless Carbon C1. Zipps ultimate aero weapon is faster than ever thanks to their proprietary Total System Efficiency technology. With TSE the 858 NSW Carbon Tubeless Disc-brake wheels features a tubeless and hookless rim profile for seamless tire interface and huge drop in weight. The wheels internal width is 23mm ideal for running wider tires with lower pressures for decreased rolling resistance and the Carbon Internal Reinforcement (CiR) creates a rim that is 10% lighter and just as strong as previous wheels. At the center of the 858 NSW is the Cognition V2 Hubset engineered with the Axial Clutch V2 mechanism for quicker engagement and lower friction as well as improved durability. The result is pure speed especially for triathletes time trial specialist and any other speed freak.

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