ZIPP 858 NSW DISC WHEELSETNew Zipp graphics and cosmetic identity that screams speed, applied using Zipps ImPress direct print technology 18mm internal width and tubeless compatibility for optimization of wider tires with lower tire pressure Cognition DB hubset rolls efficiently whether you are pedaling or coasting. Its Axial Clutch technology allows the freehubs ratcheting mechanism to deliver half the mechanical drag of conventional three pawl hubs Sawtooth rim with