Zipp 454 NSW Front Wheel - 700 12 x 100mm Center-Lock Tubeless Carbon B1. 454 NSW Tubeless Disc-brake wheels are the ultimate choice for road racing delivering everything the performance cyclist demands. The design fuses two of Zipp’s most advanced approaches; the Sawtooth rim profile and TSE for an all-encompassing approach to performance. At the center of the 454 NSW is the Cognition V2 Hubset re-engineered for lower friction as well as improved durability.Tubeless and hookless rim profile optimized tire bed for easy tire installation58-mm deep rim shape provides speed on every terrain with best-in-class aerodynamic efficiency and crosswind stability23mm internal width maximizes performance when used with 28mm tiresTotal System Efficiency (TSE) for greater efficiency and reduced rolling resistanceSawtooth rim with Hyperfoil nodes and HexFin ABLC dimple pattern for top aero and crosswind-stability performance with an undulating rim depthCognition V2 hubset rolls efficiently to reduce drag and lowers frictionShips with 12mm front and rear end capsCenter locking rotor interface lockring included