Zipp, Super 9 Tubeless Ready, rear disc wheel

The Zipp Super 9 Tubeless Ready rear disc wheel is a top complement for your modern triathlon and time trial bike. Its refined shape is wide and parallel from the hub until it tapers inward at the tire bed without hooks. Thanks to Zipp's carbon layup and Total System Efficiency (TSE) design, the Super-9 is tailored for a new era of wider tires and lower tire pressure in TT and triathlon. Zipp's TSE approach to wheel design is based on a simple premise: Efficiency equals speed, perfect pavement or not.By combining Zipp's wheel layup with a wider rim profile and optimized tire interface, the four barriers to speed are overcome: wind resistance, gravity, rolling resistance, and vibration losses. Guided by TSE, Zipp re-engineered the Super-9 from the rim-tire interface to its ceramic bearings. The result is less wasted effort for you.