Riding is believing with the Zipp 1ZERO HITOP SW MTB wheelset when it comes to making you faster. Trail compliance is vital, with modern cross-country races becoming rougher and more challenging. 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 SW carbon rim complies with the terrain thanks to Zipp's proprietary HITOP Technology for carbon layup. The result is a lightweight 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. You don't have to work hard to spin it up to speed or fight your bike when things get chunky. The 1ZERO HITOP SW also comes with the TyreWiz tire-pressure monitoring system, so you'll always have your tire pressure dialed in for optimal performance. Among the lightest on the market, the ZM2 SL hubset ensures you'll be quick to accelerate and back on the pedals sooner after corners with the 1ZERO HITOP SW.Features:- HITOP Technology produces proprietary rim layup to provide compliance and confidence when the trail gets rough- Low weight for effortless accelerations and climbing- Winged rim provides a smooth resting surface for the tire, reducing the chance of pinch flats after a rock hit- TyreWiz 2.0 tire-pressure monitoring system features a seamless design- ZM2 SL hub with 66 points of engagement- Standard or Torque Cap options on the front hub- XD or Microspline driver-body optionsSpecifications:- Orientation (wheels): Rear- Size (wheels): 29´´- Rim construction: Carbon – Hookless- Tire compatibility: Tube-type or Tubeless tires- Rim depth: 21.2mm- Surface texture: Smooth- Brake compatibility: Disc (Center Lock)- Rim - inside width: 30mm- Rim profile: Asymmetrical- Rim finish: UD fiber, Bake-On labels- Nipple material: Aluminum- Nipple anti-rotation: Sapim Secure-Loc- Spoke count: 24- Spoke pattern: 2 Cross- Hub: ZM2 SL- Driver body type: SRAM XD- Axle type (Wheels): TA 12x148- Axle material: Aluminum front & rear- Bearings: Cartridge - Steel- Driver Mechanism: 6 Pawls Compression, 66 POE- Driver body material: Aluminum- Max tire pressure: 50psi/3.45bar- Max recommended system weight: 286lbs/130kg- Spoke Length DS: 286mm- Spoke Length NDS: 290mm- Max outside width: 37.7mm- Weight (g): 1325