{"product_id":"prologo-nago-r4-pas-agx-tirox-137mm-saddle","title":"Prologo Nago R4 PAS AGX Tirox Saddle 137mm – Anthracite\/Black.","description":"\u003ch3\u003e\n\u003cspan style=\"text-decoration: underline;\"\u003e\u003ca href=\"https:\/\/www.lafobikes.com\/collections\/prologo\" title=\"Prologo Collection at LafoBikes\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/www.lafobikes.com\/collections\/prologo\" title=\"Prologo Collection at LafoBikes\" rel=\"noopener\" target=\"_blank\"\u003ePrologo\u003c\/a\u003e  \u003cstrong\u003eNago R4 PAS AGX – Race-Level Gravel Performance with Added Control and Comfort.\u003c\/strong\u003e\u003c\/span\u003e\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp\u003eThe Prologo Nago R4 PAS AGX is a high-performance gravel saddle developed for riders who demand race-level efficiency without sacrificing comfort and control on rough terrain. Measuring a compact 245 × 137mm, it combines Prologo's semi-round T-shape geometry with increased dual-density padding, 3D Slide Control, the Multi Sector System, and a wide PAS pressure-relief channel.\u003c\/p\u003e\n\u003cp\u003eDeveloped in collaboration with elite gravel athletes, the AGX platform is designed for competitive gravel and cyclocross racing, long-distance bikepacking, mixed-surface adventures, and riders who want additional comfort even when transitioning between pavement and dirt. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAGX Technology – Built for Gravel, Cyclocross and Mixed Terrain\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAGX stands for \u003cstrong\u003eAdventure, Gravel and Cyclocross\u003c\/strong\u003e, Prologo's platform specifically engineered for riding conditions where terrain, traction, and vibration are constantly changing.\u003c\/p\u003e\n\u003cp\u003eThe Nago R4 PAS AGX features \u003cstrong\u003e2mm more padding\u003c\/strong\u003e than the standard Nago R4, using advanced dual-density foam to improve shock and vibration absorption while maintaining the firm support required for efficient power transfer. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eT-Shape Geometry – Freedom to Move\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Nago R4 PAS AGX uses Prologo's traditional \u003cstrong\u003eT-shape design\u003c\/strong\u003e, creating a broad rear support area while leaving the rider free to move forward and backward across the saddle.\u003c\/p\u003e\n\u003cp\u003eIts recessed anatomical center makes it easier to change riding position using the full 245mm saddle length — particularly useful during steep climbs, accelerations, technical terrain, and prolonged seated efforts.\u003c\/p\u003e\n\u003cp\u003eThe semi-round profile also provides additional lumbar support and helps maintain a stable riding position across changing terrain. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3D Slide Control – Increased Grip and Stability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePrologo's \u003cstrong\u003e3D Slide Control\u003c\/strong\u003e technology uses a textured saddle surface to improve grip between the rider and the saddle.\u003c\/p\u003e\n\u003cp\u003eOn loose gravel, rough trails, and repeated changes in gradient, this additional grip helps reduce unwanted movement and allows the rider to maintain a more stable and efficient position through the pedal stroke. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMulti Sector System – Independent Zones for Better Support\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Nago R4 PAS AGX incorporates Prologo's \u003cstrong\u003eMulti Sector System\u003c\/strong\u003e, dividing the saddle into mapped, independent zones with different foam characteristics.\u003c\/p\u003e\n\u003cp\u003eEach section can respond independently to the rider's position and pressure distribution, helping the saddle adapt to changing terrain and riding positions while balancing support, comfort, and pedaling efficiency. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWide PAS Channel – Pressure Relief Where It Matters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe central \u003cstrong\u003ePAS – Perineal Area System\u003c\/strong\u003e channel is wider on the AGX model and designed to reduce pressure peaks on soft tissue, tendons, and blood vessels.\u003c\/p\u003e\n\u003cp\u003eBy relieving pressure through the center of the saddle and promoting better blood circulation, the PAS system helps reduce numbness and discomfort during extended periods in the saddle — especially important on long gravel rides where repeated vibration can amplify pressure points. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTirox Rails – Strength, Comfort and Vibration Absorption\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis version uses Prologo's \u003cstrong\u003eTirox rail\u003c\/strong\u003e, manufactured from lightweight alloy steel.\u003c\/p\u003e\n\u003cp\u003eTirox offers an excellent balance between weight, strength, and compliance. Compared with Prologo's Nack carbon rail, Tirox provides greater vibration absorption, making it particularly well suited to gravel and mixed-surface riding.\u003c\/p\u003e\n\u003cp\u003eThe Tirox version is paired with an \u003cstrong\u003einjected-carbon base\u003c\/strong\u003e, engineered to provide efficient support while maintaining enough compliance for rough terrain. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e137mm Performance Fit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAt just \u003cstrong\u003e137mm wide\u003c\/strong\u003e, the Nago R4 PAS AGX is a relatively narrow performance saddle designed for riders who do not require a particularly wide sit-bone support area.\u003c\/p\u003e\n\u003cp\u003eIts compact \u003cstrong\u003e245mm length\u003c\/strong\u003e also allows riders to adopt an aggressive forward position without the excessive nose length found on traditional saddles. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIntended Use: Gravel \/ Cyclocross \/ All-Road \/ Bikepacking\u003c\/li\u003e\n\u003cli\u003eSize: \u003cstrong\u003e245 × 137 mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: \u003cstrong\u003e197 g\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eShape: T-Shape\u003c\/li\u003e\n\u003cli\u003eProfile: Semi-round\u003c\/li\u003e\n\u003cli\u003eRail: \u003cstrong\u003eTirox lightweight alloy steel\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBase: Injected carbon\u003c\/li\u003e\n\u003cli\u003ePadding: Dual-density foam\u003c\/li\u003e\n\u003cli\u003ePadding Increase: \u003cstrong\u003e+2 mm versus standard Nago R4\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePressure Relief: PAS – Perineal Area System\u003c\/li\u003e\n\u003cli\u003eSurface Technology: 3D Slide Control\u003c\/li\u003e\n\u003cli\u003eConstruction: Multi Sector System\u003c\/li\u003e\n\u003cli\u003eWidth: 137 mm\u003c\/li\u003e\n\u003cli\u003eLength: 245 mm\u003c\/li\u003e\n\u003cli\u003eColor: Anthracite \/ Black\u003c\/li\u003e\n\u003cli\u003eProduct Code: PRO-NAPXTN3ABX5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n\u003cspan style=\"text-decoration: underline;\"\u003e\u003c\/span\u003e\u003cspan style=\"text-align: center; font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eAll our products are professionally packed and shipped with tracking number and insurance. Lafo Bikes is offering you high end bikes, frames, parts \u0026amp; accessories that we love.  We are selling only genuine products, no copy or replica. Our goal is to offer you the best price on amazing bikes\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cdiv id=\"mainContent\" class=\"container\" role=\"main\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"content\"\u003e\n\u003cdiv class=\"productWaitContainer\"\u003e\n\u003cdiv class=\"productContainer inStock\" id=\"productContainer120859\"\u003e\n\u003cdiv class=\"product-info col-md-12 col-sm-8\"\u003e\n\u003cdiv class=\"tabs\"\u003e\n\u003cdiv class=\"tab-content\"\u003e\n\u003cdiv id=\"details\" class=\"tab-pane fade active in\"\u003e\n\u003cdiv class=\"details\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1336\/3759\/files\/21055967_10156261782497908_548453694147109790_o_large.jpg?v=1503756572\" alt=\"High End Bike Discount Safe Checkout\" style=\"float: none;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"footer\"\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"footer-signup\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Prologo","offers":[{"title":"Default Title","offer_id":42665110732846,"sku":"PRO-NAPXTN3ABX5","price":218.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1336\/3759\/files\/38035.jpg?v=1788455622","url":"https:\/\/www.lafobikes.com\/en-ca\/products\/prologo-nago-r4-pas-agx-tirox-137mm-saddle","provider":"LafoBikes","version":"1.0","type":"link"}