FCS ARC Tri Fins

Rated 5.0 out of 5
2 Reviews

For fast on-rail surfing. Produces exceptional speed and drive down the line.

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  • Overview

    • Designed for radical, progressive surfing.
    • The raked side fins produce exceptional speed and drive.
    • Based on the 'AM' fin template.
    • On the Medium & Large templates a smaller centre fin offers quick release through turns.

    Ideal Conditions

    • Hollow steep waves, punchy beach breaks.

    Board Types

    • Performance boards with deep concaves and moderate-to-extreme rocker.
    • Will fit the FCS II Fin System when used with grub screws and the FCS Infill Kit.
  • Performance Core

    Performance Core (PC) fins are made using a multi-layered resin transfer molding process. The flex pattern in PC fins extends progressively from the base through to the tip, helping the surfer to maintain drive and hold through a turn. This versatile fin material is light, and can be used in a variety of different conditions.

  • X-SMALL (Under 55Kg / 120 Lbs)
    SMALL (55Kg - 70Kg / 120 - 155 Lbs)
    MEDIUM (65Kg - 80Kg / 145 - 175 Lbs)
    LARGE (75Kg - 90Kg / 165 - 200 Lbs)
    X-LARGE (Over 85Kg / 190 Lbs)

  • We offer:

    • Express Shipping: Select Express 2nd Day Shipping at the Checkout for an additional fee of $4.95.
    • Tracking: Quick & easy online tracking. 
    • Peace of Mind: All our deliveries are fully insured against damage.
    • Returns: 30 day exchange or refund for unopened items.


    average rating 5.0 out of 5
    Based on 2 reviews
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    100% of reviewers would recommend this product to a friend
    2 Reviews
    Rated 5 out of 5
    Review posted

    Good fins

    really light with good response. Perfect for speedy waves

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    Rated 5 out of 5
    Review posted

    Thank you FCS for matching me with the right fins.

    I ride a SUP but a very small one, considered a short board for a SUP. 8'2" x 28" wide JP Australia Surf Pro Edition (Thruster). I used the FCS online fin finder but it pointed to FCS II Matt Biolos. My board is FCS 1. So I emailed FCS to ask them if there was a fin very close to the Matt B. They said I would probably like the ARC. They gave me the dimensions and I purchased the smalls since I prefer small fins and I weigh 135 lbs. I have only used the fins twice, both in shoulder to occasional head high waves in clean offshore-wind conditions. One day was strong wind 15 kts, the other day was 5 kts to almost glass cond. I love the fins so far. I wish the top end was a little faster when wave is a fast closeout as I had some that were faster but not as controllable as the ARCs. Other than the speed though, the ARC drops into late steep drops with much more control and still plenty of speed with great hold through aggressive turns. I am a top-to-bottom type surfer and like aggressive turns that I can push hard on without loosing control, but with a little more push the fins slide controllably sideways for a tail-slide, then engages again with control. I do tight pivot turns and surf with speed and these fins go rail-to-rail smoothly. Thank you FCS!!

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