Features

  • Name The FCS II BM PG Twin Fin Set
  • Size X Large
  • Construction Performance Glass
  • Base 117mm
  • Height 137.4mm
  • Area 14991mm
  • Sweep 39.1 degrees
  • Foil Flat
  • Colour Black/Grey/White

Description

The FCS II Britt Merrick Performance Glass Twin fin set sits somewhere between a keel and an upright twin. It's designed to give more security in your turns without inhibiting speed generation, kind of the best of both worlds with a twin set up. It's a big old fin, the biggest in the FCS range but it definitely doesn't hold back your turns, if anything it feels like it gives more squirt out of your turns. Britt Merrick has enlisted the help of Mikey February and even Tom Curren in developing this fin, needless to say their input has been essential. This fin is perfect for the CI Twin Pin, or Mid Twin in particular helping these two boards to be surfed more aggressively without fear of sliding out. The PG material offers a solid feel, further adding to the predictability of this twin set, think smooth flowing arcs with just enough pivot to make it feel like you're riding a twin. This template is highly swept back and has a long leading edge that leads to a full rounded tip, this twin set will feel really secure when laying into a longer turn or driving hard off the bottom, something that's not typically associated with twin fins. FCS recommend the Britt Merrick Twin fins for pretty much any twin, we've tried it in a couple of Album boards as well as the CI Mid Twin its surfs really well.

PLEASE NOTE: These FCS II fins are NOT compatible with the original FCS and FCS Fusion fin plugs

Delivery & returns

  • For delivery between Thu 23 Jul 2026 and Mon 27 Jul 2026

    Royal Mail 3 - 5 Working Days

    £3.99

 

What if I need to send something back for exchange or refund? 

 

It's not a problem, all purchases on Boardshop.co.uk are covered by a 14 day exchange or refund guarantee. If you are not completely satisfied with your purchase it can be exchanged or the cost of the item(s) refunded. In case of all returns you will need to contact us for a returns number.

 

Please click here for further information.

 

Prices shown are for mainland UK delivery. For full worldwide delivery info please click here.

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FCS II BM PG Twin Fins X Large - Black/Grey/White

1 reviews
The FCS II Britt Merrick Performance Glass Twin fin set sits somewhere between a keel and an upright twin.
In stock and ready for delivery
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Overview

Key features and details

No Fin Key, No Fuss

FCS II Fins are designed for speed, in and out of the water. Thanks to their patented tool-less system, you can swap fins with a simple click, no fin key or screws required. This system saves time and effort without sacrificing hold or performance.

Will these fit my Surfboard?

Made for FCS II fin boxes - the ones with two slots and no need for screws. They’ll still work with optional grub screws if your board has them, but they’re not essential. If your board has FCS I (older screw-in) boxes, these won’t fit.

Feedback from the riders

5 out of 5 stars
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Jed
Verified buyer
FCs 2 fins
After deliberating over several options for twin fin selection for a 5’ soft top slick bottom EPS core. Tried biggest carver out of my 6’ 4” gun…didn’t have any control trying to turn at all. The FCs 2 BM PG x large twin fins I purchased from boardshop.co.uk came in at several £ below other suppliers, easy ordering and was kept informed on delivery day, in fact it arrived a day earlier..sweet. After testing..wow what a difference it has made for my fun summer grovel soft top…thanks all at Boardshop…Defoe use them in the future. Jed

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