Building upon the groundwork laid by its predecessor, the 303 S, this next-generation road wheel brings industry-leading aerodynamic performance to Zipp’s acclaimed S Collection of wheels. With the 404 S, our S Collection consists of best-in-class products spanning the disciplines of road (404 S), gravel (303 XPLR S), and XC MTB (1ZERO HITOP S.) With a laser focus on paved performance, the 404 S offers advantages over the 303 S in every meaningful way – aerodynamics, hub performance, aesthetics, and price.At 50mm deep, the road-focused 404 S features a mid-depth rim profile that borrows from the WorldTour-proven Firecrest rim design, providing premium level aerodynamic performance while staying shallow enough to maintain stability in crosswinds. This design not only saves about 2 watts over the 303 S, but it also shows similar savings over competitor wheels that come in well over twice the price.FeaturesRim depth - 50mm20-hole 2-cross configuration with Sapim CX-Sprint spokesZipp 76/176 hubset, providing 36 points of quick engagementWeighs in at just 1565 gramsInner rim width - 23mmLifetime Warranty and CrashReplacement policy that lets you ride with confidence and the security of our best- in-class rider support.Paired with a 23mm internal rim width, this TSS wheel allows for 28-39mm width tires to be run at lower pressures for optimal rolling resistance and control on nearly any road condition.The 404 S comes laced in a 20-hole 2-cross configuration with Sapim CX-Sprint spokes to the proven performance of our 76/176 hubset, providing 36 points of quick engagement in a build that weighs in at just 1565 grams.404 S riders choose between the White decals typically found on our pro-team wheels, or Dark Grey decals for a classic understated aesthetic. As with all Zipp wheels, the 404 S carries an industry-leading Lifetime Warranty and Crash Replacement policy that lets you ride with confidence and the security of our best-in-class rider support
