FCS II Performer Single Fin

The FCS II Performer Single Fin is a clever and versatile centre fin designed to convert a compatible surfboard or SUP with a traditional centre fin box from a 2+1 setup into a thruster configuration.

FCS combines its proven Performer thruster template with the FCS II tool-less longboard fin base, allowing the fin to fit into a compatible centre fin box without the traditional screw and plate. Pair it with Performer side fins—or other suitable side fins—to create a thruster setup that's designed to make the board feel looser, faster turning and more responsive.

Convert a 2+1 into a Thruster

The key benefit of the FCS II Performer Single Fin is its ability to transform the performance of boards equipped with a centre fin box.

Rather than running a larger centre fin in the traditional 2+1 configuration, the smaller Performer centre fin can be paired with side fins to create a three-fin thruster setup.

This reduces the dominant feel of a large centre fin and can free up the tail, creating a more responsive board with quicker rail-to-rail transitions and tighter turning performance. FCS specifically describes the conversion as making the board looser and more responsive.

Versatile Performer Template

The Performer is FCS's versatile all-round fin template, designed to work across a broad range of conditions.

That makes this centre fin particularly useful for surfers who want to experiment with a more performance-oriented setup without changing boards or installing a different fin-box system.

FCS II Tool-Less Fin Box System

The FCS II tool-less base allows the Performer centre fin to be quickly installed, removed and repositioned without using a traditional screw and plate.

You can also slide the fin forward or backward within the box to fine-tune your setup. FCS notes that this adjustment can even be made while you're in the water.

Moving the centre fin position gives you another way to experiment with the balance between responsiveness, control and hold.

Performance Core Construction

The FCS II Performer Single Fin uses Performance Core (PC) construction.

FCS produces Performance Core fins using a multi-layered resin transfer moulding process. The flex progresses from the base towards the tip, helping maintain drive and hold through turns while keeping the fin lightweight and versatile across different conditions.

Available in Three Sizes

The Performer Single is available in Medium, Large and X-Large, allowing the centre fin to be matched more closely to the surfer and side-fin setup.

FCS recommends:

• Medium: 65–80kg
• Large: 75–90kg
• X-Large: 85kg+

Because you're linking to the FCS page rather than telling me which size you're stocking, I would leave the size out of your FlowState Page Title, Meta and H1 if you're putting multiple sizes on the same product page.

Perfect For

The FCS II Performer Single Fin is ideal for 2+1 surfboards, performance longboards and compatible SUPs where the surfer wants the option of converting to a thruster-style fin configuration.

It's particularly useful if you want to experiment with a looser and more responsive feel without permanently changing the board's fin setup.

Why You'll Love It

The FCS II Performer Single Fin gives you an easy way to dramatically change how a compatible board performs.

Pair it with suitable side fins and you can transform a conventional 2+1 setup into a more performance-oriented thruster configuration, while the tool-less FCS II base makes installation and fin-position adjustments quick and easy.

With the versatile Performer template and lightweight Performance Core construction, it's an excellent option for surfers looking to increase turning response, manoeuvrability and versatility from their existing board.