FCS II Mark Richards Performance Core 2+1 Twin Fin

Black White Swirl

One Size Despatched immediately Product Sizing Chart
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In Stock



Item code: 133735

  • Fin System: FCS II
  • Fin Set-Up: Twin fin with a stabiliser i.e. 2 + 1
  • Material: Performance Core is light, versatile and drivey, made using a "multi-layered resin transfer moulding process" that provides excellent hold through turns and a premium flex pattern
  • Template: Neutral sweep, wide base, full and rounded tip, and moderately curved trailing edge, all resulting in amazing acceleration and drive between turns. Use the stabiliser for a more thruster-like feel
  • Board Types: Designed with MR's own twin fins in mind, but will suit any fish with a similar-looking outline
  • Ideal Conditions: These fins are true all-rounders, and will go well in surf of all shapes and sizes

This is Mark Richards' original twin-fin template, the one ridden to world-title success four years in a row from 1979 to 1982. The only difference is that now it comes with the option of a small trailing or "stabiliser" fin. Leave the stabiliser at home for maximum down-the-line speed, sideways squirrelly sensations, and a purer twin-fin experience; snap it back in (FCS II, no fin key required) for extra forward drive and "thrust".

You'll probably get best results in combination with more of an MR-inspired fish shape – think narrower, shallower, possibly winged swallow tail, maybe some sort of channel between the fins, an outline that more closely resembles a modern-day shortboard – as opposed to a traditional wide-tailed fish with a deeper swallow, which usually calls for more of a keel-style fin.

We've got 'em in a few different colourways, each featuring a psychedelic swirl design that somehow seems very appropriate for a twin fin. All look ace.

Side Fins:

  • Base: 5.06" / 128mm
  • Depth: 5.56" / 141mm
  • Area: 21.06" / 13590mm
  • Sweep: 32.1°
  • Foil: Flat


  • Base: 3.31" / 84mm
  • Depth: 3.34" / 85mm
  • Area: 8.23" / 5307mm
  • Sweep: 23.1°
  • Foil: 50/50

Fin Construction Performance Core
Fin Options Twin Fins
Thruster Fins
Specialist Fins
Fin Set Up Thruster
Fin System FCS II

Product Sizing Chart

Size (Unisex)
One Size

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