{"product_id":"trek-procaliber-c-frameset-gen-3","title":"Trek Procaliber C Frameset Gen 3","description":"\u003cp\u003eThe \u003cstrong\u003eTrek Procaliber C Frameset Gen 3\u003c\/strong\u003e is a carbon XC hardtail frame built from \u003cstrong\u003eOCLV Mountain Carbon\u003c\/strong\u003e with IsoBow technology — a frame design that extends the seatstays beyond the seat tube junction to allow controlled vertical flex without affecting lateral stiffness. This smooths trail chatter in a way that most carbon hardtails can't match, keeping your body fresher on technical XC terrain while maintaining the pedaling efficiency that defines the hardtail category.\u003c\/p\u003e\n\u003cp\u003eThe Gen 3 brings a slacker head tube angle and longer recommended fork travel (up to 120mm) compared to previous generations — a recognition that modern XC is faster and rougher than it used to be. Tire clearance up to 2.4\" gives you traction options for loose or technical courses. The frame runs \u003cstrong\u003eBoost148\u003c\/strong\u003e rear axle spacing with a 12mm thru axle, and the IsoBow seatstay design allows the brake to mount off the axle extension rather than the seatstay, ensuring the flex stays in the right place and doesn't affect braking modulation.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eXC racers and performance hardtail riders who want the compliance benefits of IsoBow carbon on a fast, light platform\u003c\/li\u003e\n\u003cli\u003eRiders who want 2.4\" tire clearance and 120mm fork compatibility in a dedicated XC hardtail\u003c\/li\u003e\n\u003cli\u003eBuilders putting together a lightweight, fast XC race build on a carbon frame\u003c\/li\u003e\n\u003cli\u003eNot ideal for: full-suspension riders, enduro or trail bike use, riders who don't need the compliance technology\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eWhat to Look For\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsoBow seatstay design:\u003c\/strong\u003e The seatstay mounts the brake via an axle extension, not directly to the stay — this is what allows compliance without affecting braking; confirm compatibility if running non-standard brake mounts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFork travel:\u003c\/strong\u003e Compatible with up to 120mm — designed and geometry-optimized for this range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTire clearance:\u003c\/strong\u003e Up to 2.4\" — generous for an XC hardtail; plan your wheel\/tire combo for the terrain\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBB standard:\u003c\/strong\u003e Not specified in frame specs — confirm with us before crankset selection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eFrame — OCLV Mountain Carbon with IsoBow:\u003c\/strong\u003e Trail-grade carbon with unique layup and testing standards. IsoBow seatstay extension allows vertical compliance while maintaining lateral stiffness. Tapered head tube, internal routing, balanced post mount brake.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFork — Not Included:\u003c\/strong\u003e Frame-only sale; plan for a 100-120mm XC fork with a tapered steerer and Boost 110mm front axle.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility — Boost148 \/ 12mm Thru Axle:\u003c\/strong\u003e Boost148 rear spacing with 12mm thru axle. UDH not confirmed; confirm rear derailleur hanger spec before building. Bolt-on 36.4mm seat collar included.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRouting \u0026amp; Mounts:\u003c\/strong\u003e Internal cable routing throughout. Balanced post mount brake (mounted off axle extension, not seatstay). FSA IS-2 headset included.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eRider Intent Summary\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBiggest strengths:\u003c\/strong\u003e IsoBow compliance in an OCLV Mountain Carbon hardtail, 2.4\" tire clearance, 120mm fork compatible, lighter and more compliant than alloy alternatives\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTradeoffs:\u003c\/strong\u003e No seatpost included; BB standard confirmation required; higher price than alloy Procaliber; IsoBow brake mount is specific and must be confirmed for aftermarket brakes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat makes it different:\u003c\/strong\u003e IsoBow is a rare solution to the XC hardtail compliance problem — most carbon hardtails are just stiff; this one actively damps vertical trail chatter through a structural design choice\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eVictory's Take\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eAt Victory Bicycle Studio, the Procaliber C Gen 3 is the XC hardtail we recommend when a rider wants carbon performance with real trail comfort — the IsoBow compliance makes longer XC race days and technical terrain noticeably more manageable than on a standard stiff carbon hardtail.\u003c\/p\u003e","brand":"Trek","offers":[{"title":"S (29\" WHEEL) \/ Carbon Red Smoke","offer_id":53531609661747,"sku":"5326552","price":2199.99,"currency_code":"USD","in_stock":true},{"title":"M (29\" WHEEL) \/ Carbon Red Smoke","offer_id":53531609694515,"sku":"5326553","price":2199.99,"currency_code":"USD","in_stock":false},{"title":"ML (29\" WHEEL) \/ Carbon Red Smoke","offer_id":53531609727283,"sku":"5326554","price":2199.99,"currency_code":"USD","in_stock":true},{"title":"L (29\" WHEEL) \/ Carbon Red Smoke","offer_id":53531609628979,"sku":"5326555","price":2199.99,"currency_code":"USD","in_stock":true},{"title":"XL (29\" WHEEL) \/ Carbon Red Smoke","offer_id":53531609760051,"sku":"5326556","price":2199.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0981\/3685\/0739\/files\/f6a1ad0a90b320c769045c007b0492328f5e32eb.jpg?v=1782159157","url":"https:\/\/victorybicyclestudio.com\/products\/trek-procaliber-c-frameset-gen-3","provider":"Victory Bicycle Studio","version":"1.0","type":"link"}