Our first full-carbon clincher wheelset, the 404 Carbon Clincher has been described as the most heavily anticipated wheelset of all time. And following two years of development for its revolutionary rim shape and carbon technology, we’re confident that the 404 Carbon Clincher lives up to the hype.
By controlling airflow around the back half of the wheel, Firecrest makes the latest version of the 404 9 seconds faster than its predecessor over 40km at a moderate 10-degree wind angle.
At higher wind angles, the improvements are even more dramatic in terms of both speed and stability. That’s because Firecrest moves the center of pressure closer to the steering axis, so crosswinds exert lower side force on the wheel.
- Rim Type : Carbon Clincher(X58 rim)
- Rim finish : Dimpled
- Hub Spec : 88/188
- Weight Front : 718g, Rear 839g
- Aerodynamics - time and watt savings over 40K for 404 wheelset: 80 seconds / 27 watts.