HED's patent describes how rim width in relation to tire width can create a tangential angle (click to enlarge).
While Specialized may have found a way to save riders five minutes last year, they've just announced a partnership with HED Cycling that could help make their components even faster. As part of this relationship, the brands will "share technology, build products and collaborate to bring the most advanced cycling components to a broader market of cyclists," read a recent press release issue by Specialized.
Specialized will also license HED's patent on rim shape, which describes how to increase stall angles (and thereby reduce drag) via rim width and shape. More specifically, HED's patent describes how rim width in relation to tire width can create a tangential angle. It also describes how this feature of rim design works in conjunction with tapering the inside edge of the rim inwards works to increase aerodynamic efficiency.
Here's the full press release:
HED Cycling and Specialized Bicycle Components are pleased to announce the creation of a cooperative relationship in which the two innovators in the bicycle industry can share technology, build products and collaborate to bring the most advanced cycling components to a broader market of cyclists.
As part of the collaboration, Specialized will license HED's U.S. Patent No. 8,888,195 directed to aerodynamic bicycle rim shaping and design. HED filed for this patent on June 9, 2009, and it was approved by the United States Patent and Trademark Office on November 18, 2014
The relationship between HED and Specialized is an alliance between two companies committed to advancing their products in order to better serve their customers. HED's reputation for speed began in the 1980s with the invention of the modern aerodynamic disc wheel. HED continues to "reinvent the wheel" through a commitment to providing the best possible, most reliable, fastest, and most well-rounded cycling products.
Since its founding in 1974, Specialized has lived by the moto "innovate or die." The "Win Tunnel" is one example of Specialized's continued commitment to creating the most aerodynamic, highest-performing products on the road. Specialized and HED look forward to the opportunities the relationship can provide, and to the continued opportunity to earn the position as the rider's brand of choice.