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Naturally, we chose to launch our groundbreaking Firecrest® and Carbon Clincher designs with our most versatile wheelset, the 404. Its 58 mm rim depth is a classic all-around performer that has carried athletes to victory in every kind of event – triathlons, criteriums, breakaways, field sprints and even Grand Tour mountain stages.
In fact, our first full-carbon clincher wheelset, the 404 Firecrest 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 Firecrest Carbon Clincher lives up to the hype.
And new for 2012, the 404 is getting the brand new 88/188 hubset, with a 7.5mm-wider bearing stance in the rear hub, and a driveside hub canted by 2 degrees for improved stiffness and reliability. For 2012, the venerable wheelset is available in a classic Falcon Grey color scheme or our all-new Beyond Black with black-anodized hubs, spokes, and reflective black logos. Its Firecrest aero profile is the first deep-profile carbon clincher design to offer the superior aerodynamics, ride quality, strength and handling of a wider rim body. Yet the 404 Firecrest Carbon Clincher weighs just 1,561 grams per set, putting it among the lightest deep-profile carbon clinchers available.
Designed specifically to account for the differences in airflow patterns between clincher tires and tubulars, the 404 Firecrest Carbon Clincher far exceeds the aero performance of any other clincher wheelset in its class. As Zipp proved with the Paris-Roubaix-winning 303 Tubular, a wider rim offers greater vertical compliance for control and comfort on rough surfaces while increasing lateral stiffness for sprinting and cornering. The same holds true for Firecrest rims with clincher tires. And because the hook beads are farther apart, the tire itself takes on a more stable shape without adding rolling resistance.
Heavy continuous braking on carbon surfaces can cause spikes in rim temperature and tire pressure that impact performance and handling – especially with clincher tires. To solve this challenge, our U.S.-based composites supplier created a new heat-resistant resin exclusively for Zipp. This technology improves heat dissipation so substantially that ours are the only carbon clinchers to pass stringent European safety testing without limitations on rider weight or brake pad options.
404
404 Firecrest® Carbon Clincher
The 58 mm rim profile is a classic in Zipp®’s arsenal that dates back to the early 1990s. These days, the 404 Tubular is still winning races from the Queen K to L’Alpe d’Huez. Now, with the advanced Firecrest® aero-rim shape, our leading all-around performer is an even greater threat to win any race on any terrain. For 2012, the venerable wheelset is available in a classic Falcon Grey color scheme or our all-new Beyond Black with black-anodized hubs, spokes, and reflective black logos.
By controlling airflow around the back half of the wheel, 404 Firecrest is 9 seconds faster than its predecessor 404 model over 40 km at a moderate 10-degree wind angle. At higher wind angles, the improvements are even more dramatic in terms of speed and stability. That’s because Firecrest moves the center of pressure closer to the steering axis so crosswinds exert less side force on the wheel. The result is a more stable ride.
Beyond aerodynamics and stability, the 404 Firecrest’s wider 27.5 mm-wide profile offers a slew of other benefits on the road. The upgraded lateral stiffness makes the 404 Firecrest even more responsive to accelerations and more precise when cornering. And its composite structure is designed to absorb impacts by flexing slightly outward – which gives you a comfortable ride and long-term durability.
Even with all the improvements from Firecrest technology the 404 Firecrest Tubular’s weight is a light 1,282 grams. On the climbs, it goes toe-to-toe with shallower, less aero rivals. On the flats, it hangs with deeper, less nimble competitors. If any one wheelset can do it all, it’s the 404 Firecrest.
And new for 2012, the 404 Firecrest is getting the brand new 88/188 hubset, with a 7.5mm-wider bearing stance in the rear hub, and a driveside hub canted by 2 degrees for improved stiffness and reliability.
404 Firecrest® Tubular
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