FCS II Retro Keel Twin Fins

Low aspect keel twin designed for fish shapes. Fast and loose with minimal drag.

Rated 4.8 out of 5
Based on 10 reviews
Product In Stock


  • Overview

    • Low aspect keel template designed for fish shapes with contemporary outlines and concaves.
    • Lowest area keel in the FCS range.
    • Feels fast and loose with minimal drag, and encourages a more progressive and radical approach to riding a fish.

    Board Types

    • Designed to fit the FCS II Fin System.
    • Recommended for all board types including fish, funboard, and twin fin boards.
  • Performance Glass

    Performance Glass (PG) fins are machine cut from layers of solid fiberglass. These fins are stiff, and are widely used by pro level surfers because the integrity of the flex is maintained under immense force, and in the most extreme of conditions and situations.


  • Small - Medium

    New Sizing for Specialty Fins

    You may notice new size ratings for our Specialty Fin Range. Previously, all Specialty Series fins were rated an XL. To better reflect fin sizing, we now have 3 new size categories: S-M, M-L, and L-XL.

    Please refer to the Size/Fin Data tab on the product page to compare dimensions, or you can find more information on the FCS Fin Data Page

    Fin

    Base (inches)

    Base (mm)

    Depth (inches)

    Depth (mm)

    Area (inches)

    Area (mm)

    Sweep Deg°

    Foil

    S/M 7.28 184.8 4.73 120.0 22.58 14565
    38.3° 80/20

    View the FCS Fin Data page for Base/Depth/Area/Foil information.


    • average rating 4.8 out of 5
      Based on 10 reviews
      • 5 Stars
        8 Reviews
      • 4 Stars
        2 Reviews
      • 3 Stars
        0 Reviews
      • 2 Stars
        0 Reviews
      • 1 Star
        0 Reviews
      100% of reviewers would recommend this product to a friend
      Customer photos and videos
      10 Reviews
      Reviewed by Grant M., from Australia
      Verified Buyer
      I recommend this product
      Surfing Ability
      Intermediate +
      Board Type
      • Funboard
      Rated 5 out of 5
      Review posted

      FCS II Retro Keel Twin

      Purchased these to try in my JS Big Baron and instantly noticed a different feel to the board from the Power Twins I've been using. Particularly in small surf where it felt like the board was easier to turn. Happy I bought the keels, would love to try them in a fish!

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      Reviewed by Toby J., from Australia
      Verified Buyer
      I recommend this product
      Surfing Ability
      Intermediate +
      Board Type
      • Performance
      Rated 4 out of 5
      Review posted

      FCS II Retro Keel Twin Fins White

      Great fins - worked really well on my Seaside:)

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      Reviewed by Lucie H., from Australia
      Verified Buyer
      I recommend this product
      Surfing Ability
      Advanced
      Board Type
      • Performance
      • Funboard
      Rated 5 out of 5
      Review posted

      Flower Power

      The white retro keel fins give your imaginatio space to upgrade your board design as you wish 😊

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      Reviewed by Dean D., from Australia
      Verified Buyer
      I recommend this product
      Surfing Ability
      Intermediate +
      Board Type
      • Funboard
      Rated 5 out of 5
      Review posted

      Retro

      Love the stiff fibreglass flex paten with a very wide bass. A real solid fin set.

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      Reviewed by Jason R., from Australia
      Verified Buyer
      I recommend this product
      Surfing Ability
      Intermediate +
      Board Type
      • Other
      Rated 5 out of 5
      Review posted

      FCS2 retro keels

      Really well finished fins

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