{"product_id":"fcs-ii-ci-upright-quad-rear-white","title":"FCS II CI Upright Quad Rear White","description":"\u003carticle\u003e\r\n  \u003cp\u003e\r\n    The \u003cstrong\u003eFCS II CI Upright Quad Rear Fin Set - Medium\u003c\/strong\u003e is designed for surfers who want more control, stability, and tight pivot-style turning from their quad setup. Developed by \u003cstrong\u003eBritt Merrick\u003c\/strong\u003e to pair with the upright Channel Islands side fins, these quad rears use a \u003cstrong\u003eneutral-raked template\u003c\/strong\u003e and \u003cstrong\u003e50\/50 foil\u003c\/strong\u003e to create a balanced, confidence-inspiring feel without sacrificing responsiveness.\r\n  \u003c\/p\u003e\r\n\r\n  \u003ch2\u003eDesigned to Complete the CI Upright Quad Setup\u003c\/h2\u003e\r\n  \u003cp\u003e\r\n    These rear fins are specifically shaped to complement the \u003cstrong\u003eCI Upright side fins\u003c\/strong\u003e, making them a strong choice for surfers who want to fine-tune a performance quad. The neutral rake helps keep the board stable and controlled while still allowing it to pivot quickly through tighter turns.\r\n  \u003c\/p\u003e\r\n\r\n  \u003ch3\u003eKey Features\u003c\/h3\u003e\r\n  \u003cul\u003e\r\n    \u003cli\u003e\n\u003cstrong\u003eQuad rear fin set:\u003c\/strong\u003e Includes 2 rear fins.\u003c\/li\u003e\r\n    \u003cli\u003e\n\u003cstrong\u003eDesigned by Britt Merrick:\u003c\/strong\u003e Developed in collaboration with Channel Islands Surfboards.\u003c\/li\u003e\r\n    \u003cli\u003e\n\u003cstrong\u003eNeutral-raked template:\u003c\/strong\u003e Balances control and stability with quick pivoting response.\u003c\/li\u003e\r\n    \u003cli\u003e\n\u003cstrong\u003e50\/50 foil:\u003c\/strong\u003e Adds directional control and a smooth, predictable feel.\u003c\/li\u003e\r\n    \u003cli\u003e\n\u003cstrong\u003ePerformance Core construction:\u003c\/strong\u003e Lightweight material with progressive flex from base to tip.\u003c\/li\u003e\r\n    \u003cli\u003e\n\u003cstrong\u003eFCS II compatible:\u003c\/strong\u003e Designed for the FCS II fin system.\u003c\/li\u003e\r\n    \u003cli\u003e\n\u003cstrong\u003eMedium size:\u003c\/strong\u003e Recommended by FCS for surfers approximately 145-175 lbs.\u003c\/li\u003e\r\n  \u003c\/ul\u003e\r\n\r\n  \u003ch2\u003ePerformance Core Construction\u003c\/h2\u003e\r\n  \u003cp\u003e\r\n    FCS builds the CI Upright Quad Rears in \u003cstrong\u003ePerformance Core\u003c\/strong\u003e, a lightweight multi-layer resin construction designed to provide a progressive flex pattern from the base through the tip. This helps the fins maintain drive and hold through turns while keeping the ride responsive and controlled.\r\n  \u003c\/p\u003e\r\n\r\n  \u003ch2\u003eBest for Punchy, Steep Surf\u003c\/h2\u003e\r\n  \u003cp\u003e\r\n    The CI Upright template is particularly well suited to \u003cstrong\u003ehollow, steep waves and punchy beach breaks\u003c\/strong\u003e, where quick acceleration and tight turning are valuable. It also works well on performance and hybrid boards with more relaxed rocker that benefit from extra start-up speed and a responsive pivot feel.\r\n  \u003c\/p\u003e\r\n\r\n  \u003ch2\u003eWho Is This Fin Set Best For?\u003c\/h2\u003e\r\n  \u003cul\u003e\r\n    \u003cli\u003eSurfers running a \u003cstrong\u003equad setup\u003c\/strong\u003e with CI Upright side fins\u003c\/li\u003e\r\n    \u003cli\u003eRiders who want \u003cstrong\u003etight, pivot-style turns\u003c\/strong\u003e\n\u003c\/li\u003e\r\n    \u003cli\u003ePerformance and hybrid boards with relaxed rocker\u003c\/li\u003e\r\n    \u003cli\u003eSurfers looking for a balanced mix of control, stability, and speed\u003c\/li\u003e\r\n  \u003c\/ul\u003e\r\n\r\n  \u003ch2\u003eRider Shack Note\u003c\/h2\u003e\r\n  \u003cp\u003e\r\n    Buying your FCS II CI Upright Quad Rear Fin Set from \u003cstrong\u003eRider Shack\u003c\/strong\u003e supports a \u003cstrong\u003esmall business and core surf shop run by surfers\u003c\/strong\u003e. We're here to help you match your fins to your board and the type of waves you actually surf.\r\n  \u003c\/p\u003e\r\n\r\n  \u003ch2\u003eFAQ: FCS II CI Upright Quad Rear Fin Set - Medium\u003c\/h2\u003e\r\n\r\n  \u003ch3\u003eHow many fins are included in this set?\u003c\/h3\u003e\r\n  \u003cp\u003e\r\n    This is a \u003cstrong\u003e2-fin quad rear set\u003c\/strong\u003e, designed to be paired with compatible front quad fins.\r\n  \u003c\/p\u003e\r\n\r\n  \u003ch3\u003eWhat fin system does this set use?\u003c\/h3\u003e\r\n  \u003cp\u003e\r\n    These fins are designed for the \u003cstrong\u003eFCS II fin system\u003c\/strong\u003e.\r\n  \u003c\/p\u003e\r\n\r\n  \u003ch3\u003eWhat size surfer is the Medium set recommended for?\u003c\/h3\u003e\r\n  \u003cp\u003e\r\n    FCS recommends the \u003cstrong\u003eMedium\u003c\/strong\u003e size for surfers approximately \u003cstrong\u003e145-175 lbs\u003c\/strong\u003e.\r\n  \u003c\/p\u003e\r\n\r\n  \u003ch3\u003eWhat kind of waves are these fins best for?\u003c\/h3\u003e\r\n  \u003cp\u003e\r\n    They are especially well suited to \u003cstrong\u003ehollow, steep waves and punchy beach breaks\u003c\/strong\u003e, where quick speed and tight turning are important.\r\n  \u003c\/p\u003e\r\n\r\n  \u003ch3\u003eWhat does the 50\/50 foil do?\u003c\/h3\u003e\r\n  \u003cp\u003e\r\n    The \u003cstrong\u003e50\/50 foil\u003c\/strong\u003e helps provide stability and directional control, giving the rear fins a balanced and predictable feel through turns.\r\n  \u003c\/p\u003e\r\n\r\n  \u003ch3\u003eDo these fins work best with CI Upright side fins?\u003c\/h3\u003e\r\n  \u003cp\u003e\r\n    Yes. They were specifically designed to pair with \u003cstrong\u003eChannel Islands CI Upright side fins\u003c\/strong\u003e for a balanced quad setup.\r\n  \u003c\/p\u003e\r\n\u003c\/article\u003e\r\n","brand":"FCS","offers":[{"title":"Default Title","offer_id":53958258360603,"sku":"119480","price":83.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0707\/6868\/9435\/files\/119480.jpg?v=1789588831","url":"https:\/\/www.ridershack.com\/products\/fcs-ii-ci-upright-quad-rear-white","provider":"Rider Shack","version":"1.0","type":"link"}