The Zipp 404 S is built to be the fastest road wheel Zipp make at this price — a genuine aero upgrade without the flagship price tag. This front wheel takes the next step on from the 303 S, borrowing its 50mm mid-depth profile from the WorldTour-proven Firecrest rim to deliver premium aerodynamic performance while staying shallow enough to hold a steady line in crosswinds.

That extra depth is claimed to save around two watts over the 303 S, and comfortably more against rival wheels costing far more. The rim is a hookless, tubeless-only Tubeless Straight Side design, so paired with modern tubeless tyres it runs lower pressures for a smoother, faster ride with more grip.

The wheel spins on Zipp's 76 front hub with 36 points of engagement for quick, dependable pick-up, laced with 20 Sapim CX-Sprint spokes in a 2-cross pattern for a stiff, durable build. Choose from Dark Grey or White graphics to suit your bike.

Features

• 50mm Firecrest-derived rim profile for premium aerodynamics with crosswind stability
• Around 2 watts faster than the 303 S
• Hookless, tubeless-only Tubeless Straight Side (TSS) rim
• Zipp 76 hub with 36 points of engagement
• Sapim CX-Sprint spokes, 20-hole 2-cross
• 700c, disc brake (Center Lock), 12 × 100mm thru-axle
• Up to 73psi / 5.0 bar; choice of Dark Grey or White

Specification

• Wheel: Front
• Rim depth: 50mm
• Rim construction: Carbon, hookless Tubeless Straight Side (TSS)
• Tyre compatibility: Tubeless tyres only
• Brake: Disc, Center Lock
• Axle: 12 × 100mm
• Hub: Zipp 76, 36 points of engagement
• Bearings: Stainless steel cartridge
• Spokes: Sapim CX-Sprint, 20-hole 2-cross
• Weight: 707g
• Max tyre pressure: 73psi / 5.0 bar
• Max system weight: 115kg / 253lbs
• Colours: Dark Grey, White