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The Zipp 404 S A1 is a 50mm-deep carbon disc-brake wheel with a 23mm internal width, balancing aerodynamic speed with crosswind stability and supporting 28-40mm tubeless tires at lower pressures. It's for road racers, criterium riders and fast all-road riders who want mid-depth aero performance for everyday training and racing.
- The Zipp 404 S offers the ideal balance of weight, aerodynamics, and aesthetics to the discerning cyclist.
- Fit for road racers, criterium specialists, or any high-performance pavement rider. At 50mm deep, the 404 S rim’s mid-depth profile provides premium level aerodynamic performance while staying shallow enough to maintain stability in crosswinds. Paired with a 23mm internal rim width, this TSS wheel allows for 28-40 mm width tires to be run at lower pressures for optimal rolling resistance and control on nearly any road condition.
- 50mm rim depth.
- 23mm inner rim width.
- 20-hole 2-cross configuration with Sapim CX-Sprint spokes
- Zipp ZR700 hubset
Pairs well with

Zipp 404 S A1
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