Smoother is faster with the Zipp Super-9 Tubeless Disc-Brake Disc. Thanks to Zipp’s Total System Efficiency (TSE) carbon laminate and design, the Super-9 is engineered for a new era of wider tires and lower tire pressure in TT and triathlon. Combining Zipp’s wheel laminate with a wider rim profile and optimized tire interface helps overcome the four barriers to speed: wind resistance, gravity, rolling resistance, and vibration losses. The result is less wasted effort. Optimal tire pressure is crucial to maximizing speed on the bike. To ensure proper inflation, the Super-9 comes with the TyreWiz 2.0 tire pressure monitor integrated out of sight, so you’ll always know if you’re in your desired PSI/bar range. Inflation is a breeze with redesigned pump access—no stickers needed. Attributes Axle Type 12mm TA Position Rear Wheel Tire Type Tubeless Ready Wheel Weight 1030g Hub Model ZR1 Rim Color Black Valve Presta Wheel Diameter/ISO 700C / 622 Rim inner width range 22-27.9mm Hub Spacing 142mm Wheel-Brake Comp. Disc Center Lock Rim Internal Width 23mm Rim Material Carbon Rim Model Super-9 Skewers Included No