Zipp's first aero alloy road wheel.

The 101’s centerpiece is the first fully toroidal aluminum rim, developed in the wind tunnel with a proprietary profile curve extending across the braking surfaces. With this patented design, the 30mm-deep 101 can exceed the aerodynamic performance of V-shaped rims with much deeper aero profiles. And no shallow-profile design comes close to the 101 in the wind tunnel or on the road, where the 101 can save up to 42 seconds over 40km compared to the industry's benchmark aluminum wheelset.

Creating the 101 required developing new technologies to conduct wind tunnel testing using structural prototypes with fully inflated clincher tires. This makes the resulting test data more accurate and realistic than ever before. After our engineers honed in on the fastest shape, the manufacturing process required its own set of innovations for rolling, welding, and machining the 101’s precisely curved toroidal profile.