{"product_id":"factor-ostro-gravel-carbon-premium-package-gravel-bike-frameset","title":"Factor Ostro Gravel Carbon Premium Package Gravel Bike Frameset","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"3:1-3:525;67-591\"\u003eThe Factor OSTRO Gravel Carbon Premium Package is a \u003cstrong\u003egravel frameset\u003c\/strong\u003e built for riders who want race-level speed without giving up all-road versatility. The package includes the \u003cstrong\u003eframe, OSTRO Wide Stance Fork, seatpost, and Black Inc integrated aero barstem\u003c\/strong\u003e — core components for a custom complete build rather than a finished bike. The frame is laid up from a blend of \u003cstrong\u003eTeXtreme, Toray, and Nippon Graphite pitch-based carbon fiber\u003c\/strong\u003e, carrying forward the aero-first engineering of its road stablemate, the OSTRO VAM.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"5:1-5:535;593-1127\"\u003eFactor's engineers used a \u003cstrong\u003e\"zoned aero\" strategy\u003c\/strong\u003e: aerodynamic priority at the front of the bike, where airflow is clean, and light-weight priority at the rear, where turbulence makes aero shaping less effective. The head tube uses a new shape designed to manage the laminar separation bubble that forms near airfoils at gravel speeds. Paired with \u003cstrong\u003e45mm tire clearance\u003c\/strong\u003e in both 700c and 650b and a modern \u003cstrong\u003eUDH-compatible\u003c\/strong\u003e rear end, the OSTRO Gravel is built to move fast over rough terrain while keeping your build options open.\u003c\/p\u003e\n\u003ch4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\" data-sourcepos=\"7:1-7:22;1129-1150\"\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\" data-sourcepos=\"9:1-13:114;1152-1661\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"9:1-9:104;1152-1255\"\u003eRiders building a custom gravel bike who want to choose their own groupset, wheels, and finishing kit\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"10:1-10:96;1256-1351\"\u003eGravel racers who prioritize aerodynamics and race-proven durability in wet, muddy conditions\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"11:1-11:98;1352-1449\"\u003eRiders who need generous \u003cstrong\u003e45mm tire clearance\u003c\/strong\u003e for rough or wet routes in either 700c or 650b\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"12:1-12:98;1450-1547\"\u003eRiders planning a \u003cstrong\u003eSRAM 13-speed wireless drivetrain\u003c\/strong\u003e build, thanks to full UDH compatibility\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"13:1-13:114;1548-1661\"\u003eConsider a complete bike instead if you'd rather not source and assemble your own groupset, wheels, and cockpit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\" data-sourcepos=\"15:1-15:26;1663-1688\"\u003e\u003cstrong\u003eWhat to Look For\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\" data-sourcepos=\"17:1-19:93;1690-2038\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"17:1-17:105;1690-1794\"\u003eFrame and seatpost fit: seatposts are available in \u003cstrong\u003e0mm and 20mm setback\u003c\/strong\u003e to dial in saddle position\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"18:1-18:151;1795-1945\"\u003eCockpit sizing: the Black Inc Integrated Aero Barstem comes in multiple stem lengths and bar widths, with \u003cstrong\u003e80mm reach and 120mm drop\u003c\/strong\u003e on this spec\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"19:1-19:93;1946-2038\"\u003eDrivetrain compatibility: confirm your groupset supports \u003cstrong\u003eUDH\u003c\/strong\u003e before finalizing a build\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\" data-sourcepos=\"21:1-21:22;2040-2061\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"23:1-23:263;2063-2325\"\u003eFrame and fork are engineered together: the \u003cstrong\u003eTeXtreme, Toray, and Nippon Graphite pitch-based carbon fiber\u003c\/strong\u003e layup pairs with the purpose-built \u003cstrong\u003eOSTRO Wide Stance Fork\u003c\/strong\u003e, designed alongside the frame for handling and tire clearance rather than added afterward.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"25:1-25:313;2327-2639\"\u003eAero engineering follows a zoned approach: priority at the front of the bike, where airflow is clean, and priority on weight at the rear. The redesigned \u003cstrong\u003ehead tube shape\u003c\/strong\u003e targets the laminar separation bubble that forms near airfoils at gravel speeds, the detail Factor credits for the design's drag reduction.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"27:1-27:257;2641-2897\"\u003eTire and terrain capability: \u003cstrong\u003e45mm of tire clearance\u003c\/strong\u003e in both 700c and 650b, with a true 4mm per side to ISO standard, means this frameset is built for mud and rough gravel — a capability backed by a top-10 finish at the notoriously wet 2022 Unbound 200.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"29:1-29:291;2899-3189\"\u003eDrivetrain compatibility comes from \u003cstrong\u003eUniversal Derailleur Hanger (UDH)\u003c\/strong\u003e support: the frame works with SRAM 13-speed groupsets and other UDH-compatible wireless drivetrains, with a hanger that rotates rearward on impact and a lip that keeps the chain from lodging between hanger and frame.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"31:1-31:181;3191-3371\"\u003eHeadset and steering: a \u003cstrong\u003eCeramicSpeed SLT 1.5\" bearing headset\u003c\/strong\u003e with a 1.5\" upper and lower head tube diameter completes a premium steering setup matched to the frame's handling.\u003c\/p\u003e\n\u003ch4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\" data-sourcepos=\"33:1-33:30;3373-3402\"\u003e\u003cstrong\u003eRider Intent Summary\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\" data-sourcepos=\"35:1-37:136;3404-3798\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"35:1-35:160;3404-3563\"\u003eBiggest strengths: aero-focused frame design, \u003cstrong\u003e45mm tire clearance\u003c\/strong\u003e in 700c and 650b, and a premium finishing kit (Black Inc barstem, CeramicSpeed headset)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"36:1-36:99;3564-3662\"\u003eTradeoffs: sold as a \u003cstrong\u003eframeset package\u003c\/strong\u003e, so you'll need to source your own groupset and wheels\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\" data-sourcepos=\"37:1-37:136;3663-3798\"\u003eWhat makes it different: a gravel-specific zoned aero design, full \u003cstrong\u003eUDH compatibility\u003c\/strong\u003e, and a top-10 finish at the 2022 Unbound 200\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\" data-sourcepos=\"39:1-39:24;3800-3823\"\u003e\u003cstrong\u003eVictory's Take\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" data-sourcepos=\"41:1-41:259;3825-4083\"\u003eWe see the OSTRO Gravel as a strong pick for riders who already know their build spec and want an aero-focused, wet-weather-capable frameset. If you'd rather skip the sourcing, \u003cstrong\u003eVictory Bicycle Studio\u003c\/strong\u003e can spec and assemble it into a complete bike for you.\u003c\/p\u003e","brand":"Factor","offers":[{"title":"Heritage Blue \/ 49","offer_id":53669933416755,"sku":"BKEFSPXOSG01-BLU-49","price":5999.0,"currency_code":"USD","in_stock":true},{"title":"Heritage Blue \/ 52","offer_id":53669933449523,"sku":"BKEFSPXOSG01-BLU-52","price":5999.0,"currency_code":"USD","in_stock":true},{"title":"Heritage Blue \/ 54","offer_id":53669933482291,"sku":"BKEFSPXOSG01-BLU-54","price":5999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0981\/3685\/0739\/files\/factor-ostro-gravel-carbon-premium-package-gravel-bike-frameset-heritage-blue-1.jpg?v=1784223426","url":"https:\/\/victorybicyclestudio.com\/products\/factor-ostro-gravel-carbon-premium-package-gravel-bike-frameset","provider":"Victory Bicycle Studio","version":"1.0","type":"link"}