Riding means having complete confidence in the Zipp 1ZERO HITOP SW wheels and their ability to let you ride very fast. As today's cross-country races become tougher and more competitive, the ability to adapt to the trail is crucial. It's no longer enough to have cross-country wheels whose main feature is their stiffness. Instead, wheels that are responsive and "lively" are in demand. The 1ZERO HITOP SW carbon rim adapts to the terrain thanks to Zipp's exclusive Carbon Layer Technology. The result is a lightweight cross-country wheel designed for speed on all types of trails, rocks, roots, and ruts. Nevertheless, this wheelset offers the durability required for a trail bike with a travel of up to 130 mm. A versatile wheel provides even more confidence. You won't have to struggle to gain speed or fight with your bike when the going gets tough. Since the 1ZERO HITOP SW model is also equipped with the TyreWiz tire pressure management system, your tires will always be filled to the ideal pressure for optimal performance. With the ZM2 SL hub of the 1ZERO HITOP SW, one of the lightest hubs on the market, you'll have no trouble accelerating out of every corner and regaining speed.