48 Hours Only—Buy Castelli Bibs, Get a Free Castelli Jersey »
  • Free Shipping on orders over $50*
  • 100% Guaranteed Returns

2008 Zipp Sub-9 Lenticular Disc Wheel

The first wheel ever to show positive drag in a wind tunnel. At 15 degrees of yaw the Zipp Sub 9 Disc showed a -80g drag reading creating lift rather than making drag.