{"product_id":"zipp-404-s-carbon-wheelset","title":"Zipp 404 S Carbon Road Wheelset - 50 mm, 700c Disc","description":"\u003cdiv class=\"brimstone-wheel-description\"\u003e\n\u003cp style=\"color:#0F502C;font-weight:700;letter-spacing:0.06em;\"\u003eROAD \/ ATTAINABLE AERO\u003c\/p\u003e\n\u003ch2\u003eZipp 404 S: make your next road upgrade count\u003c\/h2\u003e\n\u003cp\u003eThe Zipp 404 S is a complete 700c carbon disc-brake wheelset for road riders considering a 50 mm aero upgrade without moving straight into the NSW range. Start here when your priority is a more focused road setup for club rides, fast training and racing, rather than a wheelset intended to cover gravel as well.\u003c\/p\u003e\n\u003cdiv style=\"padding:16px 18px;background:#f4f7f4;border-left:3px solid #0F502C;margin:20px 0;\"\u003e\n\u003cp\u003e\u003cstrong\u003eWhat you are buying:\u003c\/strong\u003e A complete front-and-rear wheelset. Select the rear freehub: Shimano \/ SRAM HG Road or SRAM XDR. Manufacturer model: WH-404-S-A1.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment first:\u003c\/strong\u003e Road and all-road use, not gravel. Zipp recommends TSS-compatible 28-39 mm tires for this model. Confirm the exact tire and size, frame clearance and cassette before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHookless setup:\u003c\/strong\u003e 5.0 bar wheel ceiling (approximately 72.5 psi). A lower tire- or size-specific limit may apply; a maximum is not a riding recommendation. \u003ca href=\"https:\/\/www.sram.com\/en\/zipp\/campaigns\/hookless-tire-compatibility\"\u003eCheck current Zipp tire compatibility\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eTurn the familiar loop into your next goal\u003c\/h3\u003e\n\u003cp\u003eThe rolling loop after work. The faster weekend group. The road event that finally earns a place on your calendar. The 404 S belongs on the shortlist when those are the rides you are building toward. Its appeal is a focused carbon aero-road platform that leaves you room to choose the tires and finishing details that make the upgrade your own.\u003c\/p\u003e\n\u003cp\u003eA 50 mm rim gives the 404 S a clear aero-road identity, while its 23 mm internal width brings the tire into the design conversation. Zipp pairs that rim with 76\/176 hubs and Sapim CX-Sprint spokes. Think of the wheel and compatible tire as one setup: rim shape, tire width and pressure work together, so the best starting point is your actual road riding.\u003c\/p\u003e\n\u003csection aria-label=\"Zipp 404 S product views\" class=\"brimstone-zipp-visuals\" style=\"margin:28px 0;\"\u003e\n\u003ch3\u003eZipp 404 S: a closer look\u003c\/h3\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:16px;align-items:stretch;\"\u003e\n\u003cfigure style=\"margin:0;flex:1 1 260px;min-width:0;background:#ffffff;border:1px solid #e5e9e5;border-radius:8px;overflow:hidden;\"\u003e\n\u003cimg alt=\"Zipp 404 S front wheel, side view\" decoding=\"async\" height=\"1000\" loading=\"lazy\" src=\"https:\/\/www.sram.com\/globalassets\/image-hierarchy\/sram-product-root-images\/wheels\/wheels\/wh-404-s-a1\/productassets_wh-404-s-a1_fg\/wh-404-s-cl-f-12x100-dgry-a1-f-driveside.png?w=1000\" style=\"display:block;width:100%;height:auto;max-width:100%;object-fit:contain;background:#ffffff;\" width=\"1000\"\u003e\n\u003cfigcaption style=\"padding:12px 16px 16px;font-size:0.92em;line-height:1.5;\"\u003eA 50 mm road-focused profile.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\u003cfigure style=\"margin:0;flex:1 1 260px;min-width:0;background:#ffffff;border:1px solid #e5e9e5;border-radius:8px;overflow:hidden;\"\u003e\n\u003cimg alt=\"Zipp 404 S rear wheel, angled view with XDR freehub\" decoding=\"async\" height=\"1000\" loading=\"lazy\" src=\"https:\/\/www.sram.com\/globalassets\/image-hierarchy\/sram-product-root-images\/wheels\/wheels\/wh-404-s-a1\/productassets_wh-404-s-a1_fg\/wh-404-s-cl-r-xdr-12x142-dgry-a1-c-3q-s.png?w=1000\" style=\"display:block;width:100%;height:auto;max-width:100%;object-fit:contain;background:#ffffff;\" width=\"1000\"\u003e\n\u003cfigcaption style=\"padding:12px 16px 16px;font-size:0.92em;line-height:1.5;\"\u003eAn angled view of the rear wheel and driver.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:0.86em;line-height:1.5;color:#555;margin:10px 0 0;\"\u003eOfficial Zipp product photography. Individual wheels are shown for detail; this listing is for the front-and-rear wheelset. The rear freehub supplied follows your selected option; rear photographs show an example configuration.\u003c\/p\u003e\n\u003c\/section\u003e\u003ch3\u003eWho should put this wheelset on the shortlist?\u003c\/h3\u003e\n\u003cp\u003eChoose the 404 S when you want to step into carbon aero road wheels and still leave room in the budget for the rest of the build. Do not choose it simply because a gravel tire might physically mount. For a mixed-surface plan, start the conversation with the 303 SW or a dedicated XPLR model instead.\u003c\/p\u003e\n\u003ch3\u003eZipp 404 S specifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n\u003ccaption style=\"text-align:left;padding:0 0 8px;\"\u003eManufacturer reference for the model identified above\u003c\/caption\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;vertical-align:top;width:34%;padding:9px 12px 9px 0;border-bottom:1px solid #e3e7e3;\"\u003eModel \/ generation\u003c\/th\u003e\n\u003ctd style=\"vertical-align:top;padding:9px 0;border-bottom:1px solid #e3e7e3;\"\u003eWH-404-S-A1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;vertical-align:top;width:34%;padding:9px 12px 9px 0;border-bottom:1px solid #e3e7e3;\"\u003ePurchase unit\u003c\/th\u003e\n\u003ctd style=\"vertical-align:top;padding:9px 0;border-bottom:1px solid #e3e7e3;\"\u003eFront + rear wheelset\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;vertical-align:top;width:34%;padding:9px 12px 9px 0;border-bottom:1px solid #e3e7e3;\"\u003eWheel \/ brake format\u003c\/th\u003e\n\u003ctd style=\"vertical-align:top;padding:9px 0;border-bottom:1px solid #e3e7e3;\"\u003e700c; disc brake; Center Lock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;vertical-align:top;width:34%;padding:9px 12px 9px 0;border-bottom:1px solid #e3e7e3;\"\u003eRim interface\u003c\/th\u003e\n\u003ctd style=\"vertical-align:top;padding:9px 0;border-bottom:1px solid #e3e7e3;\"\u003eCarbon; hookless \/ Tubeless Straight Side (TSS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;vertical-align:top;width:34%;padding:9px 12px 9px 0;border-bottom:1px solid #e3e7e3;\"\u003eRim depth\u003c\/th\u003e\n\u003ctd style=\"vertical-align:top;padding:9px 0;border-bottom:1px solid #e3e7e3;\"\u003e50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;vertical-align:top;width:34%;padding:9px 12px 9px 0;border-bottom:1px solid #e3e7e3;\"\u003eInternal width\u003c\/th\u003e\n\u003ctd style=\"vertical-align:top;padding:9px 0;border-bottom:1px solid #e3e7e3;\"\u003e23 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;vertical-align:top;width:34%;padding:9px 12px 9px 0;border-bottom:1px solid #e3e7e3;\"\u003eHub platform\u003c\/th\u003e\n\u003ctd style=\"vertical-align:top;padding:9px 0;border-bottom:1px solid #e3e7e3;\"\u003eZipp 76\/176 disc-brake hubs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;vertical-align:top;width:34%;padding:9px 12px 9px 0;border-bottom:1px solid #e3e7e3;\"\u003eTire fit\u003c\/th\u003e\n\u003ctd style=\"vertical-align:top;padding:9px 0;border-bottom:1px solid #e3e7e3;\"\u003eTSS-compatible tubeless tires; manufacturer recommendation 28-39 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;vertical-align:top;width:34%;padding:9px 12px 9px 0;border-bottom:1px solid #e3e7e3;\"\u003eWheel pressure ceiling\u003c\/th\u003e\n\u003ctd style=\"vertical-align:top;padding:9px 0;border-bottom:1px solid #e3e7e3;\"\u003e5.0 bar wheel ceiling (approximately 72.5 psi); lower applicable tire limits prevail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;vertical-align:top;width:34%;padding:9px 12px 9px 0;border-bottom:1px solid #e3e7e3;\"\u003eMaximum system weight\u003c\/th\u003e\n\u003ctd style=\"vertical-align:top;padding:9px 0;border-bottom:1px solid #e3e7e3;\"\u003e115 kg \/ 253 lb; rider, bicycle and equipment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align:left;vertical-align:top;width:34%;padding:9px 12px 9px 0;border-bottom:1px solid #e3e7e3;\"\u003ePublished wheelset weight\u003c\/th\u003e\n\u003ctd style=\"vertical-align:top;padding:9px 0;border-bottom:1px solid #e3e7e3;\"\u003ePublished figures differ: 1,585 g product page; 1,630 g support FAQ. Confirm the selected build.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eZipp 404 S vs 404 Firecrest: where should your budget go?\u003c\/h3\u003e\n\u003cp\u003eThe 404 S uses a 50 mm rim and 76\/176 hubs; the 404 Firecrest moves to 58 mm and ZR1 DB hubs. That is a meaningful buying distinction, not simply two names for the same wheel. Start with the S for a focused carbon aero upgrade, or investigate Firecrest when the deeper rim and different hub platform are priorities. Compare complete installed setups and the exact generations offered.\u003c\/p\u003e\n\u003cp\u003eCompare with \u003ca href=\"\/products\/zipp-404-firecrest-carbon-wheelset\"\u003eZipp 404 Firecrest\u003c\/a\u003e or \u003ca href=\"\/products\/zipp-303-sw-carbon-wheelset\"\u003eZipp 303 SW\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eQuestions to answer before ordering\u003c\/h3\u003e\n\u003ch4\u003eIs the 404 S suitable for gravel?\u003c\/h4\u003e\n\u003cp\u003eNo. Zipp identifies this model for road and all-road use, not gravel. A wider tire recommendation does not change the approved riding category.\u003c\/p\u003e\n\u003ch4\u003eCan I use my current 28 mm road tires?\u003c\/h4\u003e\n\u003cp\u003eThe width alone is not enough. Provide the tire brand, exact model, labeled size and construction. A conventional tube-type road tire is not made compatible with this hookless rim by adding a tube.\u003c\/p\u003e\n\u003ch4\u003eWhy do I see different Zipp 404 S weights online?\u003c\/h4\u003e\n\u003cp\u003eSRAM currently lists 1,585 g on its product page and 1,630 g in its support information. We flag the discrepancy rather than promise a specific saving over your existing wheels. Ask for the weight basis of the configuration being supplied.\u003c\/p\u003e\n\u003ch4\u003eIs this the 404 Firecrest?\u003c\/h4\u003e\n\u003cp\u003eNo. This listing is the 404 S, model WH-404-S-A1. Compare model IDs when checking prices; 404 S, 404 Firecrest, individual wheels and complete pairs are different offers.\u003c\/p\u003e\n\u003ch3\u003eChoose the wheels with a real bike shop\u003c\/h3\u003e\n\u003cp\u003eSend us your bike model and year, cassette model, current tires and typical rides. We can discuss whether the 404 S is the sensible upgrade or whether a different rim depth better suits your plan.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003eAsk Brimstone about this wheelset\u003c\/a\u003e or call \u003ca href=\"tel:+13309700911\"\u003e(330) 970-0911\u003c\/a\u003e. Our shop is in Canal Fulton, Ohio. Confirm current availability, package contents and any installation or accessory charges before purchase.\u003c\/p\u003e\n\u003cp\u003eComparing prices? Review our \u003ca href=\"\/pages\/price-guarantee\"\u003ePrice Guarantee terms, eligibility and exclusions\u003c\/a\u003e. \u003ca href=\"\/collections\/wheel-collection\"\u003eExplore the complete wheel collection\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Zipp","offers":[{"title":"Shimano \/ SRAM HG Road","offer_id":67786344235284,"sku":null,"price":1300.0,"currency_code":"USD","in_stock":true},{"title":"SRAM XDR","offer_id":67786344268052,"sku":null,"price":1300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0856\/6698\/8308\/files\/wh-404-s-cl-f-12x100-dgry-a1-f-driveside.png?v=1792841633","url":"https:\/\/brimstonebicycles.shop\/products\/zipp-404-s-carbon-wheelset","provider":"Brimstone Bicycles","version":"1.0","type":"link"}