Zipp 404 Firecrest Carbon Tubeless Rear Wheel B1:

The Zipp 404 Firecrest Tubeless Disc Rear Wheel is built for riders who want proven aero speed without sacrificing versatility. With its 58mm carbon hookless rim, wide 23mm internal profile and tubeless-only design, it gives serious road riders a fast, efficient platform for racing, triathlon, gran fondos and high-speed training.

The 404 Firecrest is designed around Zipp’s Total System Efficiency approach, targeting the real-world forces that slow riders down: wind resistance, rolling resistance, gravity and vibration losses. Its ABLC Sawtooth surface texture helps improve aerodynamic performance, while the wider rim profile supports modern tubeless tyres at lower pressures for better comfort, grip and efficiency across varied road surfaces.

At the rear, the German-engineered ZR1 Disc Brake hub delivers durability, improved sealing and fast engagement through its 66 points of engagement. Combined with Centre Lock disc brake compatibility and a SRAM/Shimano Road driver body, this is a premium rear wheel built to deliver race-ready speed and dependable performance across changing conditions.

Features
• 58mm deep aero carbon rim for fast road and race performance
• Tubeless and hookless rim profile for modern tyre set-ups
• 23mm internal width supports wider tyres at lower pressures
• ABLC Sawtooth surface texture improves aero efficiency
• ZR1 Disc Brake hub with improved sealing and 66 points of engagement
• Centre Lock disc brake interface with lockring included
• Ships with 12mm end caps
• SRAM/Shimano Road driver body
• Lifetime warranty

Specifications
Orientation: Rear
Wheel Size: 700c
Rim Construction: Carbon hookless
Tyre Compatibility: Tubeless tyres only
Rim Depth: 58mm
Internal Rim Width: 23mm
Maximum Outside Width: 28mm
Surface Texture: ABLC Sawtooth
Brake Compatibility: Disc, Centre Lock
Rim Profile: Symmetrical
Spoke Type: CX-Ray
Spoke Count: 24
Spoke Pattern: 2 cross
Nipple Material: Aluminium
Nipple Anti-Rotation: Sapim Secure-Loc
Hub: ZR1 Disc Brake
Driver Body Type: SRAM/Shimano Road
Axle Type: TA 12x142
Axle Material: Aluminium front and rear
Bearings: Steel cartridge
Driver Mechanism: 6 pawls leaf spring, 66 POE
Driver Body Material: Aluminium
Maximum Tyre Pressure: 73psi
Maximum Recommended Rider Weight: 250lbs
Spoke Length DS: 248mm
Spoke Length NDS: 252mm
Weight: 981g