FCS II Mayhem Tri-Quad Fins

Designed by revered shaper Matt "Mayhem" Biolos. Same proven template with a new look.

Rated 5.0 out of 5
Based on 15 reviews
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  • Overview

    • The MB template offers freedom to perform tight turns in the pocket with an emphasis on speed.
    • Sitting in the reactor family, the MB is considered a high performance fin because it responds incredibly fast, but still offers enough control so you can confidently lay into a turn with plenty of force.
    • Tri/Quad (5 fin) set.

    Ideal Conditions

    • A wide range of conditions, particularly good in critical overhead waves.

    Board Types

    • Designed to fit the FCS II Fin System.
    • Performance shortboards and hybrid models.

    Fin Family

    • Reactor: Find Speed. Speed, tight turns & snaps.

  • Performance Core Carbon

    Often referred to as PC Carbon or PCC, these fins are highly responsive and feature strategically placed carbon that’s designed to complement the fin template. PCC fins suit fast surfing and are favored by power surfers who like to perform explosive turns on critical parts of the wave.


  • MEDIUM (65Kg - 80Kg / 145 - 175 Lbs)
    LARGE (75Kg - 90Kg / 165 - 200 Lbs)

     Fin

    Base (inches)

    Base (mm)

    Depth (inches)

    Depth (mm)

    Area (inches)

    Area  (mm)

    Sweep Deg°

    Foil

    MED 4.3 109 4.59 116 14.49 9347 31.9° Flat
    MED (Q-Rear) 4.09 104 4.26 108 12.63 8150 32.4° 80/20
    LRG 4.41 112 4.74 120 15.26 9847 31.9° Flat
    LRG (Q-Rear) 4.09 104 4.26 108 12.63 8150 32.4° 80/20

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



    • average rating 5.0 out of 5
      Based on 15 reviews
      • 5 Stars
        15 Reviews
      • 4 Stars
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      100% of reviewers would recommend this product to a friend
      Customer photos and videos
      15 Reviews
      Reviewed by Bryce T., from New Zealand
      Verified Buyer
      I recommend this product
      Surfing Ability
      Advanced
      Board Type
      • Funboard
      Rated 5 out of 5
      Review posted

      Great Fins

      loving these at the moment fast and loose

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

      love them

      awesome fins.lots of drive.

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      Reviewed by Richard K.
      Verified Buyer
      I recommend this product
      Rated 5 out of 5
      Review posted

      Big guy 5 fin pack

      Recently picked up a new board and needed some fins. I wanted to be able to ride it as a quad or a thruster. Pick these up and so far they've been great. Been using them primarily as quads. Use them for thrusters one day when it got a little bigger and really wanted to jam. Some turns. Performance excellent

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      Reviewed by Michael Carrillo J.
      Verified Buyer
      I recommend this product
      Rated 5 out of 5
      Review posted

      Look good surf good

      The fins look even more cool in real life so they just make you surf cool right?

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      Reviewed by Morgan W.
      Verified Buyer
      I recommend this product
      Rated 5 out of 5
      Review posted

      Versatile and responsive

      Perfect blend of drive, control, and maneuverability. Worked great as a thruster and a quad.

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