When Zipp set out to build on the already dominant wheels on the market they knew something drastic had to be done. After testing a new rim design was formed, and shed 9 seconds off the previous 404's design over 40K at just 10 degrees of wind. This new design performs even better at more drastic angles.
While aerodynamics are important, Zipp has spent countless hours producing a fast rim that’s as durable as it is aerodynamic without sacrificing weight, and they did it. The new 404 Firecrest features a 27.07mm rim profile that increase lateral stiffness, handling and road feel. All of this was done in while keeping the wait at the same 1278g’s as before. The Zipp 404 Firecrest carbon tubular is an unmatched performance wheel designed for triathlons and cyclists wanting a wheel for every demand possible.
Other features include:
- 188 rear hubset (increased stiffness)
- 16 Spoke rear lacing
- Zipp patented dimpled surface