{"product_id":"3t-exploro-primo2-wpnt-carbon-grx-12-speed-gravel-bike","title":"3T Exploro Primo2 WPNT Carbon GRX 12 Speed Gravel Bike","description":"\u003cp\u003eThe 3T Exploro Primo2 WPNT is a carbon gravel bike built around 3T's WPNT (Wide Profile Narrow Tire) philosophy — a design approach that prioritizes aerodynamic efficiency without sacrificing the tire clearance and compliance needed for gravel and mixed-surface riding. The frame uses a \u003cstrong\u003eunidirectional pre-preg carbon, high-modulus\/high-strength performance blend layup\u003c\/strong\u003e paired with the 3T Fango Primo2 fork. UDH compatibility keeps the drivetrain current and future-ready.\u003c\/p\u003e\u003cp\u003eDrivetrain is Shimano GRX 1×12 throughout: \u003cstrong\u003e40T single chainring paired with a Shimano Deore 10-51T cassette\u003c\/strong\u003e — a gear range wide enough for steep climbs and for holding pace on fast flats. Shifting and braking run through Shimano GRX ST-RX610 levers and BR-RX400 hydraulic disc brakes with 160mm rotors. The cockpit is full 3T — Superergo Pro bar, APTO stem, and Prendo Tough bar tape. Wheels are either Fulcrum Rapid Red 900 or Fulcrum Racing 600 depending on build configuration, with tires at either Pirelli Cinturato Adventure 700×45 or Vittoria Terreno T30 Sport 700×40.\u003c\/p\u003e\u003ch4\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eGravel riders who want aerodynamic efficiency on pavement without giving up mixed-surface capability\u003c\/li\u003e\n\u003cli\u003eRiders looking for a capable 1×12 carbon build with a wide gear range (10-51T) at a mid-range price point\u003c\/li\u003e\n\u003cli\u003eThose who value a complete 3T cockpit and Shimano GRX ecosystem out of the box\u003c\/li\u003e\n\u003cli\u003eCyclists doing long mixed-surface routes — dirt roads, gravel, and pavement in the same ride\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eConsider a different bike if you need a dedicated road setup, prefer 2× gearing, or require dropper post compatibility.\u003c\/p\u003e\u003ch4\u003e\u003cstrong\u003eWhat to Look For\u003c\/strong\u003e\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuild configuration:\u003c\/strong\u003e Two wheelset and tire pairings are offered — confirm which is included at purchase, as the Pirelli 700×45 and Vittoria 700×40 differ meaningfully in width and tread character.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStem and bar sizing:\u003c\/strong\u003e Stem length scales by size (80–110mm) and bar width shifts from 40cm to 42cm at L\/XL — worth confirming against your fit before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGearing:\u003c\/strong\u003e The 40T\/10-51T combination suits most gravel terrain, but riders with very steep or heavily loaded routes should evaluate whether the 40T front ring provides enough low-end range.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eCarbon Frame and Fork:\u003c\/strong\u003e The Primo2's \u003cstrong\u003ehigh-modulus\/high-strength carbon blend\u003c\/strong\u003e is spec'd for stiffness at the bottom bracket and power-transfer points. The WPNT geometry supports the wider tire profile that makes this platform versatile across surfaces. Thru-axle spec is 100×12 front and 142×12 rear with a UDH-specific dropout.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShimano GRX 1×12 Drivetrain:\u003c\/strong\u003e The GRX RD-RX822 rear derailleur, ST-RX610 levers, and \u003cstrong\u003eFC-RX610-1 40T crankset\u003c\/strong\u003e form a gravel-specific drivetrain. The 10-51T Deore cassette provides a 510% range — useful for varied elevation without the weight and complexity of a front derailleur.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHydraulic Disc Braking:\u003c\/strong\u003e Shimano BR-RX400 hydraulic calipers with \u003cstrong\u003e160mm SM-RT64 rotors\u003c\/strong\u003e deliver consistent stopping power in wet and muddy conditions with the modulation control that matters on technical descents.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e3T Cockpit System:\u003c\/strong\u003e The Superergo Pro drop bar, APTO stem, and Prendo Tough tape are designed as a system. The APTO semi-integrated spacer kit cleans up the headtube stack while maintaining adjustability. Prendo Tough tape is spec'd for durability on long, rough days.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSaddle:\u003c\/strong\u003e The \u003cstrong\u003eFizik Vento Argo X5 in 140mm\u003c\/strong\u003e is a short-nosed saddle supporting a forward, performance-oriented position — consistent with the Primo2's intent as a fast gravel platform.\u003c\/p\u003e\u003ch4\u003e\u003cstrong\u003eRider Intent Summary\u003c\/strong\u003e\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBiggest strengths:\u003c\/strong\u003e Aerodynamic WPNT carbon platform, wide-range GRX 1×12 drivetrain, performance-oriented spec throughout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTradeoffs:\u003c\/strong\u003e Single chainring has limits at the extremes; wheelset and tire spec vary by build configuration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat makes it different:\u003c\/strong\u003e The WPNT philosophy prioritizes aerodynamic tire-frame interaction — a deliberate design choice that separates this bike from conventionally relaxed gravel geometry\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003e\u003cstrong\u003eVictory's Take\u003c\/strong\u003e\u003c\/h4\u003e\u003cp\u003eAt Victory Bicycle Studio, the Primo2 WPNT stands out for riders who want a genuinely fast gravel bike — not just a capable one. The GRX 1×12 drivetrain and WPNT carbon platform hold up on road and off it, and we're happy to walk through fit and configuration options given the cockpit sizing variables across sizes.\u003c\/p\u003e","brand":"3T","offers":[{"title":"Fumo \/ Small","offer_id":53420544590131,"sku":"95FR14EDA101S","price":2879.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0981\/3685\/0739\/files\/3t-exploro-primo2-wpnt-carbon-shimano-grx-12-speed-gravel-bike-fumo-1.jpg?v=1780964563","url":"https:\/\/victorybicyclestudio.com\/products\/3t-exploro-primo2-wpnt-carbon-grx-12-speed-gravel-bike","provider":"Victory Bicycle Studio","version":"1.0","type":"link"}