Zipp: Zipp’s HiTOP S MTB wheelset melds high value with high performance for a simply better ride.With modern cross-country courses becoming rougher and more challenging, trail compliance is vital. No longer is it good enough for an XC wheelset to be stiff above all else. Instead, a wheelset should feel alive. The 1ZERO HiTOP S carbon rim’s design complies with the terrain thanks to Zipp's proprietary HiTOP Technology for carbon layup. The result is a light XC wheel that carries speed through all sections of the trail, rocks, roots, and ruts with the durability required for a trail bike with up to 130mm of travel. A compliant wheel provides more confidence. The 1ZERO HiTOP S features the dependable ZM 900 hubset. FEATURES HiTOP Technology produces proprietary rim layup to provide compliance and confidence when the trail gets rough Low weight for effortless accelerations and climbing Wide lips on top of the rim provide a smooth resting surface for the tire, reducing the chance of pinch flats after a rock hit ZM 900 SL hub with 52 points of engagement Standard or Torque Cap options on front hub XD or Microspline drive-body options TyreWiz sold separately SPECIFICATIONS Orientation (wheels): Front Size (wheels): 29" Rim construction: Carbon Hookless Tire compatibility: Tube-type or Tubeless tires Rim depth: 21.2mm Surface texture: Smooth Brake compatibility: Disc (6-bolt) Rim - inside width: 30mm Rim profile: Asymmetrical Rim finish: UD fiber, adhesive decals Color (Decal): Standard Nipple material: Aluminum Nipple anti-rotation: Sapim Secure-Loc Spoke type: CX-Sprint Spoke count: 24 Spoke pattern: 2 Cross Hub: ZM 900 Driver body type: n/a Color (hub): Black Axle type (Wheels): TA 15x110 Torque Caps (dia. 31mm) Axle material: Aluminum front & rear Bearings: Cartridge - Steel Driver Mechanism: n/a Driver body material: n/a Max tire pressure: 50psi/3.45bar Max recommended system weight: 286lbs/130kg Spoke Length DS: 292mm Spoke Length NDS: 288mm Max outside width: 37.7mm