{"product_id":"f4-sr-tuttle-mast","title":"F4 SR Tuttle Hybrid Mast","description":"\u003ch1\u003e\u003cspan\u003eSR Hybrid Mast\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan\u003eSTOCK ARRIVING 9\/10\/2026\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eFor nearly two years, the SR Mast project has been one of the most ambitious undertakings in F4 history and undoubtedly the largest research and development investment we have ever made.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe potential of hybrid mast architecture was impossible to ignore. The results seen in high-performance Moth racing demonstrated a new path forward for hydrofoil design, but weight, safety, cost, and compliance with World Sailing regulations presented challenges that could not be overlooked. Our mission became clear: deliver the geometry, drag reduction, and wetted surface area advantages of a hybrid mast in the most elegant, practical, and accessible package possible.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan\u003eThe result is the SR.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan\u003eBuilt on the same groundbreaking architecture as our race-proven 108 Hybrid Mast, the SR represents a fundamental shift in how a hydrofoil interacts with the water and, more importantly, how a rider interacts with the foil.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan\u003eWhile the speed and efficiency gains are remarkable, what truly drove our excitement throughout development was something much harder to measure. \u003c\/span\u003e\u003cspan\u003eThe SR allows you to experience your foil in a way that traditional mast designs simply cannot.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan\u003eBy dramatically reducing the \"rudder effect\" created by conventional mast profiles, the SR creates a more direct and natural connection between rider and foil. Turns become cleaner. Transitions become smoother. The foil responds with a level of freedom that feels almost unreal. The sensation is immediate, and once experienced, impossible to forget.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe result is what riders often describe as a true \"magic carpet ride. An unedited connection to the foil. Pure glide. Pure feedback. Pure enjoyment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan\u003eThe benefits extend far beyond feel alone. The SR's unique geometry significantly reduces drag and wetted surface area, helping riders conserve energy during long downwind runs, accelerate more efficiently, and maintain speed through powerful carving turns. Whether your goal is maximum efficiency or maximum fun, the result is the same: longer rides, less fatigue, and a level of performance that changes your expectations of what a foil can do.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDuring testing, one thing became increasingly clear. The impact of the SR is not incremental. The shift we experienced with the introduction of our AX Skinny Mast series nearly two years ago was significant, but the SR takes that evolution to an entirely different level. Every rider who has spent time on an SR prototype has come back with the same reaction: it fundamentally changes the way foiling feels.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eAnd then there is the visual impact.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eAn 85 mm wide mast does not go unnoticed. Arrive at the beach with an SR and chances are you'll spend more time answering questions than getting to the water. Its appearance is striking, but what truly leaves an impression is what happens once you start riding.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eThe SR is more than a new mast.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eIt is the next frontier of hydrofoil design.\u003c\/p\u003e","brand":"kitepuertorico","offers":[{"title":"75","offer_id":45082534805570,"sku":null,"price":3397.0,"currency_code":"USD","in_stock":true},{"title":"85","offer_id":45082534838338,"sku":null,"price":3397.0,"currency_code":"USD","in_stock":true},{"title":"108","offer_id":45082534871106,"sku":null,"price":3397.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0017\/6124\/7298\/files\/Screenshot2026-08-25141000.png?v=1787681423","url":"https:\/\/www.kitepuertorico.com\/products\/f4-sr-tuttle-mast","provider":"kitepuertorico","version":"1.0","type":"link"}