{"product_id":"zipp-404-s-carbon-rear-bicycle-wheel","title":"Zipp 404 S Carbon Rear Road Bicycle Wheel","description":"\u003cp dir=\"ltr\"\u003eThe Zipp 404 S Carbon Rear Wheel is a 50mm-deep carbon road wheel built to bring race-level aerodynamics down to a more attainable price point. Sold here as the \u003cstrong\u003erear wheel only\u003c\/strong\u003e, it takes over from the 303 S as the road-focused entry in Zipp's S Collection, using a mid-depth rim profile borrowed from the WorldTour-proven \u003cstrong\u003eFirecrest\u003c\/strong\u003e design — deep enough for a real aero benefit, shallow enough to stay stable when the wind picks up.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eZipp positions the 404 S as an upgrade over the 303 S in every category that matters: aerodynamics, hub performance, aesthetics, and price. The rim is a \u003cstrong\u003ehookless, Tubeless Straight Side (TSS)\u003c\/strong\u003e design at 50mm deep with a 23mm inner width, meaning it's engineered around tubeless tires from the ground up rather than treating them as an add-on.\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003e\n\u003cp\u003eRoad cyclists upgrading from alloy or entry-level carbon wheels who want a measurable aero gain\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRacers and fast group-ride riders who want Firecrest-derived aero performance without NSW-level pricing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRiders already on tubeless tires, or ready to switch — this rim is not compatible with tubed setups\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNot the choice for riders who need a wheel for gravel or mixed-surface riding; that role belongs to Zipp's 303 XPLR S\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cstrong\u003eWhat to Look For\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003e\n\u003cp\u003eMatch your drivetrain: this wheel is offered with either a \u003cstrong\u003eShimano HG\u003c\/strong\u003e or \u003cstrong\u003eSRAM XDR\u003c\/strong\u003e freehub body\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConfirm your tires are tubeless-ready and rated for hookless rims before mounting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCheck frame compatibility: built for \u003cstrong\u003e12mm thru x 142mm\u003c\/strong\u003e rear spacing with a \u003cstrong\u003eCenter-Lock\u003c\/strong\u003e disc rotor mount\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003eThe \u003cstrong\u003ehookless TSS carbon rim\u003c\/strong\u003e is the core of this wheel's performance case. At 50mm deep and 23mm internal width, its Firecrest-derived shape is built for smooth airflow while holding a steady line in crosswinds, and it's tubeless-only by design — there's no tubed fallback here.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe \u003cstrong\u003eZipp 176 hub\u003c\/strong\u003e runs stainless steel cartridge bearings with \u003cstrong\u003e36 points of engagement\u003c\/strong\u003e, so power gets to the road quickly after coasting or a shift. Spoke-wise, the rear wheel uses a \u003cstrong\u003e20-hole, 2-cross pattern with Sapim CX-Sprint spokes\u003c\/strong\u003e, a lacing built for stiffness under load rather than outright compliance.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eAt \u003cstrong\u003e1,585 grams\u003c\/strong\u003e, it's light for a 50mm-deep wheel, and the \u003cstrong\u003eUD carbon fiber construction with adhesive decals\u003c\/strong\u003e keeps the black\/white finish clean without the added weight of paint.\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cstrong\u003eRider Intent Summary\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBiggest strength:\u003c\/strong\u003e A 50mm Firecrest-derived aero profile at 1,585 grams — Zipp cites roughly a 2-watt saving over the 303 S at this depth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTradeoff:\u003c\/strong\u003e Tubeless-only compatibility rules it out for riders committed to tubed tires, and hookless rims demand tubeless-ready, hookless-rated tires\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat makes it different:\u003c\/strong\u003e It's the road-specific wheel in the S Collection, distinct from the gravel-oriented 303 XPLR S and XC-focused 1ZERO HITOP S\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cstrong\u003eVictory's Take\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003eAt Victory Bicycle Studio, we point riders to the 404 S when they want a documented aero and hub upgrade over the 303 S at a mid-tier price, as long as they're running — or willing to run — tubeless tires.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Zipp","offers":[{"title":"SRAM-XDR","offer_id":54111402066227,"sku":"00.1918.803.004","price":670.0,"currency_code":"USD","in_stock":true},{"title":"HG","offer_id":54111402033459,"sku":"00.1918.803.003","price":670.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0981\/3685\/0739\/files\/d6fec82d84df87581e5b3817f08dfcf00f87b9e7.jpg?v=1784669993","url":"https:\/\/victorybicyclestudio.com\/products\/zipp-404-s-carbon-rear-bicycle-wheel","provider":"Victory Bicycle Studio","version":"1.0","type":"link"}