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Firecrest's new legacy: the 404 Firecrest wheels by Zipp

Innovation permeates all Zipp does. To that end, Zipp Firecrest wheels now offer best-in-category aero efficiency and stability - a speed-inducing combination Zipp calls AeroBalance™ - along with greater stopping power at our most popular rim depths. The new Firecrest Carbon Clincher rim brake wheelsets feature technologies previously only available in Zipp's halo-level NSW lineup.
Firecrest Carbon Clinchers, first introduced in 2010, offer durability for everyday riding and race-ready performance with the ease of use of clinchers. Each new Firecrest has key innovations, starting with a revised rim profile for reduced aerodynamic drag. In addition, the rims feature ABLC™ SawTooth™ Technology, a complex dimpling pattern that helps reduce high yaw drag and improve crosswind stability. When it comes time to slow down, Zipp's Showstopper™ textured braking surface delivers unrivalled rim braking performance in all conditions. At the center of these wheels is the pro-proven 77/177 hubset.


Application: Road, Triathlon
Wheel Size: 28"
Tyre Type: clincher tyre
Number of Spokes: 18 (front), 24 (rear)
Brake Type: rim
Tubeless System: none

Freehub Body Compatibility:

Shimano Freehub: 8-/9-/10-/11-speed Shimano/SRAM (Road)
Campa Freehub: 9-/10-/11-/12-speed Campagnolo
SRAM XDR Freehub: 11-/12-speed SRAM XDR
Note: Assembly of 8-/9-/10-speed cassettes on Shimano freehub bodies requires a 1.85 mm spacer.

Technical Information - Rim:

Type: Zipp Firecrest®
Dimensions (ETRTO): 17-622
Inner Width: 16.5 mm
Outer Width: 25 mm
Depth: 58 mm
Valve Hole Diameter: Presta (6.5 mm)
Material: carbon

Technical Information - Front Hub:

Type: Zipp 77
Over-Locknut-Dimension: 9 x 100 mm Quick Release Skewer
Hub Axle Diameter: 17 mm
Bearings: steel
Hub Body Material: aluminium

Technical Information - Rear Hub:

Type: Zipp 177
Over-Locknut-Dimension: 10 x 130 mm Quick Release Skewer
Hub Axle Diameter: 17 mm
Bearings: steel
Hub Body Material: aluminium
Freehub Body Material: aluminium

Technical Information - Lacing:

Front Lacing Pattern: radial
Rear Lacing Pattern: 2-cross
Spoke Type: Sapim CX-Sprint
Spoke Size: 248 mm (front), 260 mm/258 mm (rear l/r)
Spoke Material: stainless steel
Nipple Type: Sapim secure-lock
Nipple Material: aluminium

Approved For:

Weight Limit: 115 kg, rider weight
Air Pressure (max.): 8.62 bars
Recommended Tyre Width: 25 mm


- AeroBalance™ (low drag/high stability)
- revised ABLC™ SawTooth™ dimples
- Showstopper™ brake track to increase stopping power and help clear away water from the braking surface
- race day or everyday training
- 77/177 hubset
- matte black or white decals
- handcrafted in Indianapolis, Indiana, USA


With the new proprietary Firecrest rim shape in Zipp's 202, 303, 404 and 808 Firecrest wheels, Zipp wheels make a bigger difference in more ways than ever. Not only is Firecrest more aerodynamic than any other rim design, it improves handling in crosswinds and overall ride quality.

Zipp's industry leading silicon carbide ShowstopperT brake track continues to evolve and improve, providing unmatched stopping power and modulation regardless of weather conditions or the length of the descent.

This patented rim shape achieves something conventional aero wheels cannot; it simultaneously reduces both aerodynamic drag and side force for the ultimate in AeroBalance™. SawTooth™ accomplishes this with ABLC dimples for improved airflow. The result is both aero-drag reduction and reduced side force at all wind yaw angles. This is important because higher wind yaw angles are where bike handling is most affected by the wind.