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Road bikes are going where theyäó»ve never gone before, are expected to do more, and are being ridden harder than ever. At the same time disc brakes are rewriting the rules of whatäó»s possible with rim design. For this new era, the ZippŒ¬ 303 Firecrest Tubeless Disc-brake wheelset sets the new standard.
With an all-new disc-specific, tubeless rim, the 303 Firecrest Carbon Clincher is now internally 21mm wide and faster than ever.
The 45mm deep 303 Firecrest delivers unmatched aero performance when used with the wide tires that todayäó»s riding demands. Weäó»ve achieved this with a wide disc-specific rim design featuring ABLC dimples extending all the way to the outer edge of the rim. In addition to achieving AeroBalanceä‹¢, the industry leading crosswind stability and low aerodynamic drag that defines all Firecrest wheels, the new 303 Firecrest delivers lower drag than the outgoing version when used with 25c or wider tires. The aerodynamic performance gap between a narrower rim and the new 303 grows even larger with 28c and wider tires thanks to a smoother transition between the tireäó»s profile and our new rim shape.
To ensure compatibility with any bike, Zipp's versatile 77/177D hubs come with swappable end caps to work with QRäó»s and thru-axles, including 12x100mm and 15x100mm front thru-axles as well as 12x135mm and 12x142mm rear thru-axles. The 177D rear hub is also XDR freehub body compatible for use with SRAM 10-42 cassettes. And like all Zipp carbon wheels, the new 303 Firecrest is laid up, molded, drilled and assembled in Indianapolis, USA.
- Weight: 760g Front / 885g Rear
- Rim Depth: 45mm
- Spokes Count: 24 Front / 24 Rear
- Max Width: 29.9mm
- Dimpled Surface: Yes
- Tubeless: Yes
- Hubs: Zipp 77/177D