Zipp Sub-9 Rear Disc Wheel 2008, tubular

The 2008 Zipp Sub-9 Disc Wheel is the ultimate speed weapon. At 1000g, the Zipp Sub-9 Disc Wheel's radical edge bulge design, captures air flow and gives a -80g drag reading at 15 degrees of yaw, adding a 12 watts saving  to power requirements.

Zipp was able to build on their very fast clincher disc, knowledge gained from the 808 and 1080 and combine the learnings to create the first wheel ever to show negative drag in a wind tunnel. At 15 degrees of yaw Zipp's sub9 disc showed a -80g drag reading. This design was creating lift rather than making drag. So, basically the wheel starts to help pedal for you saving you energy, and increasing efficiency, speed, forward motion.

Inserting Zipp's new Carbon Bridge™ technology increases the impact resistance, while the deeper side walls absorb and dampen road vibrations, creating a very comfortable ride and a disc wheel that handles well when cornering. At a mere 1000g, the 2008 Zipp Sub-9 Disc Wheel is light stiff and shaped for performance. OneTri is one of the premier retailers for the 2008 Zipp Sub-9 Disc Wheel.

Features:

• Creates trues negative drag!
• VCLC (Visco-Elastic Constrained Layer Control) kills vibration, increases stiffness and responsiveness.
• Carbon Bridge technology improves stiffness and impact resistance while reducing the weight!
• Total disc weight: 1000g.