High area specialty quad set adds bite and control without sacrificing pivot.

Upright keel template designed for traditional fish shapes.

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• Performance
• Material
• Size

• Overview

  • Specialty split keel quad fin set.
  • High area quad keel set adds bite and control to hybrid boards with wide tails, without sacrificing pivoting capabilities.

  
  

  Board Types

  • Designed to fit the FCS II Fin System.
  • Recommended for all board types including modern fish and hybrid models with moderate-to-low rocker.

  
  

• Performance Glass

  Performance Glass (PG) fins are machine-cut from layers of solid fiberglass. These fins are stiff and are widely used by pro-level surfers because the integrity of the flex is maintained under immense force, and in the most extreme of conditions and situations.

  
  

• Large - Extra Large (One size suits all)

  New Sizing for Specialty Fins

  S-M: (Under 75Kg / Under 143 Lbs)
  M-L: (70Kg - 90Kg / 132 - 187 Lbs)
  L-XL: (Above 85Kg / Above - 176 Lbs)

  You may notice new size ratings for our Specialty Fin Range. Previously, all Specialty Series fins were rated an XL. To better reflect fin sizing, we now have 3 new size categories: S-M, M-L, and L-XL.

  Please refer to the Size/Fin Data tab on the product page to compare dimensions, or you can find more information on the FCS Fin Data Page

  Fin	Base (inches)	Base (mm)	Depth (inches)	Depth (mm)	Area (inches)	Area  (mm)	Sweep Deg°	Foil
  Side	5.41	137.3	4.79	121.5	19.27	12432	42.5°	Flat
  Q-Rear	4.03	102.2	4.40	118.8	12.63	8150	28.5°	80/20

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

  
  

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