1ZERO HITOP S Freewheels Designed to measure 40mm on

Designed to measure 40mm on a Zipp 32mm TSS rim

Small hook tire bead designed for aero efficiency

Versatile tread design offers comfortable rolling characteristics

Radial carcass allows for a larger contact patch and significantly filters trail irregularities: more grip

1ZERO HITOP S Freewheels Designed to measure 40mm onThe 1ZERO HITOP S wheelset melds high value with high performance for a better and faster ride. The 1ZERO HITOP S carbon rim complies with the terrain thanks to Zipps proprietary HITOP Technology. The result is a light XC race or adventure wheel that carries speed through all sections of the trail, rocks, roots, and rutswith the durability required for a trail bike with up to 130mm of travel. The winged rim top provides a smooth resting surface for