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The 404 Firecrest Carbon Clincher is where the Firecrest Revolution began as 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 1,690 grams per set, providing best-in-class performance at a light weight.
At the center of the 404 Firecrest is Zipps 77/177 hubset with best-in-class durability and improved bearing protection with no pre-load adjustment needed. The result is improved stiffness, durability, simplicity and versatility.
Precision-engineered hubs along with Firecrest technology create something special. Designed specifically to account for the differences in airflow patterns between clincher tires and tubulars, the 404 Firecrest Carbon Clincher exceeds the aero performance of any other clincher wheelset in its class. As Zipp proved with the pioneering (and Paris-Roubaix and Tour of Flanders-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 heat-resistant resin exclusively for Zipp. This technology improves heat dissipation so substantially that our Carbon Clinchers have never had a heat-related failure.
Available in two decal options, the stealthy Matte Black or the distinctive Matte White decals. Each 404 Firecrest Carbon Clincher wheel comes with Tangente Platinum Pro Evo brake pads, Zipp Integrated Valve Extender with valve-core wrench, rim tape and quick release.
- Set Weight 1690g
- Max recommended rider weight 250lbs
- Front Wheel
- Weight 755g
- Hub Used 77
- Rim Depth 58mm
- Brake Track Width (center) 24.73mm
- Max Width 26.53mm
- Clincher Bead Width 16.25mm
- Spokes Sapim CX-Sprint
- Spoke Count 18
- Spoke Pattern Radial
- Spoke Length 248mm
- Max Tire Pressure 125psi
- Max Tire Pressure 8.62bars
- Track Adaptable No
- Dimpled Surface Yes
- Nipples Sapim
- External Nipples Yes
- Rear Wheel
- Weight 935g
- Hub Used 177
- Rim Depth 58mm
- Brake Track Width (center) 24.73mm
- Max Width 26.53mm
- Clincher Bead Width 16.25mm
- Spokes Sapim CX-Sprint
- Spoke Count 24
- Spoke Length Non-Drive 260mm
- Spoke Pattern Non-Drive 2 cross
- Spoke Pattern Drive 2 cross
- Spoke Length Drive 258mm
- Max Tire Pressure 125psi
- Max Tire Pressure 8.62 bars
- 11-speed compatible hub Yes
- Track Adaptable No
- Dimpled Surface Yes
- Nipples Sapim
- External Nipples Yes
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Features
- Optimized flange geometry and spoke hole attachment pattern with Sapim CX Sprint spokes to optimize torsional and lateral stiffness and robustness.
- Includes newly designed quick-release skewers with a wider more ergonomic handle to provide more leverage for opening and closing. When closed, lever contours neatly with the frame.
- New robust hub platform with distinctive graphics.
- For those looking for a wider gear range, or tackling especially extreme terrain, an XD driver body for 177 is sold separately and easily installed to allow for more cassette options including a 10-42. The hubset is designed to swap driver bodies without re-dishing the wheel.
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