The Zipp 404 Firecrest B1 SRAM XDR Rear Wheel is built for speed, stability, and modern drivetrain compatibility. Featuring a wide 23mm internal rim and tubeless-ready hookless design, it’s optimized for aero efficiency and easy tire setup on any surface.
Key Features:
- Tubeless and hookless rim profile delivers secure tire fit and modern performance.
- Optimized tire bed makes installation quick and straightforward.
- Wide 23mm internal rim width enhances aerodynamics and supports wider tires for mixed terrain.
- ZR1 DB hub with 66 points of engagement ensures fast power transfer and superior hub durability.
- SRAM XDR freehub body offers compatibility with modern 12-speed road drivetrains.
- Center lock rotor interface includes lockring for easy rotor installation.
- Ships with 12mm rear end caps for thru-axle compatibility.
Who is it for?
Perfect for riders running SRAM XDR drivetrains who want an aero-optimized, tubeless-ready rear wheel. Ideal for road racers, triathletes, and endurance cyclists looking for quick engagement, smooth performance, and confidence on mixed terrain.
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