FCS Fins

Eisbach Riders FCS-compatible fins use the classic double-tab system — the most widely adopted fin standard in surfing — so they fit virtually any modern shortboard, fish, or river board without adapters or tools.

All fins are made from recycled materials in Germany, with shapes and flex profiles tuned for the specific demands of river surfing, wave pools, and ocean breaks. Available in thruster sets, twin-fin configurations, and the Rapid River set — a twin-plus-trailer combination sized for shorter river boards.
FCS Futures
  • Surf Fins Double Tab - Replacement - Eisbach Riders Surfing Company
    FCS Surf Fins  - Replacement
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  • Surf Fins Double Tab Rapid Side Fins (medium/black) - Eisbach Riders Surfing Company
    Surf Fins Single Tab Rapid Side Fins (medium/black) - Eisbach Riders Surfing Company
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  • Surf Fins Double Tab - Rapid Surfing Set - Eisbach Riders Surfing Company
    Surf Fins Single Tab Rapid Side Fins (medium/black) - Eisbach Riders Surfing Company
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    RIVER SURFING
  • FCS Surf Fins – Small Thruster (Purple)
    FCS Surf Fins – Small Thruster (Purple)
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  • Surf Fins Double Tab (small/black) - Eisbach Riders Surfing Company
    FCS Surf Fins – Small Thruster (Black)
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  • Surf Double Tab (White) image 0
    FCS Surf Fins – Medium Thruster (White)
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  • Surf Fin Double Tab Rapid Knubster (small) - Eisbach Riders Surfing Company
    Surf Fins Single Tab Rapid Side Fins (medium/black) - Eisbach Riders Surfing Company
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    RIVER SURFING
  • Surf Fins Double Tab (medium/black) - Eisbach Riders Surfing Company
    FCS Surf Fins – Medium Thruster (Black)
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    BESTSELLER
  • Surf Fins Double Tab (medium/black) - Eisbach Riders Surfing Company
    FCS Replacement Side Fins Mounted on Surfboard – Left and Right – River Surf Setup
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  • Surf Double Tab (medium/orange) image 0
    FCS Surf Fins – Medium Thruster (Orange)
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  • Surf Fin Double Tab Rapid Knubster (medium) - Eisbach Riders Surfing Company
    Surf Fins Single Tab Rapid Side Fins (medium/black) - Eisbach Riders Surfing Company
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    RIVER SURFING
  • Surf Fins Double Tab Fiberglass Bamboo - Eisbach Riders Surfing Company
    Surf Fins Double Tab Fiberglass Bamboo - Eisbach Riders Surfing Company
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  • Surf Double Tab (blue) image 0
    FCS Surf Fins – Medium Thruster (Blue)
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  • Surf Double Tab (green) image 0
    FCS Surf Fins – Medium Thruster (Green)
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  • Surf Fins Double Tab Bio - based(medium/anthracite) - Eisbach Riders Surfing Company
    Surf Fins Double Tab Bio - based(medium/anthracite) - Eisbach Riders Surfing Company
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  • FCS Surf Fins – Medium Thruster (Purple)
    FCS Surf Fins – Medium Thruster (Purple)
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