How do you make super better? Make it tubeless. Zipp's go-to triathlon and time trial weapon, the Super-9 Tubeless Disc disc-brake wheel is tubeless ready with a 18mm internal width. That means you can lower tire pressure for a host of benefits: better cornering grip, better compliance, and reduced rolling resistance. With tubeless, you get all this without the risk of pinch flats. So, go attack the course. The Super-9 gives you the technology needed to do your best. The Super-9 Carbon Clincher optimizes supreme aerodynamics, power transfer, stiffness, lightweight and durability. Add to that the modulation and stopping power of disc brakes, you're ready to set that PR.