Designed by Al Byrne to suit deep channel boards, the FCS AB fins are great for loosening up your gun and for use in smaller tow in surf. (Up to 15 foot) The FCS AB fins have a flat foil for a more traditional feel and the added benefit of Inside Foil Technology.
FCS AB Fin Size:
Side Fin Size:
Side Base: 4.14 in. 105 mm
Side Depth: 4.37 in. 11 mm
Surface Area: 13.14 in.² 8475 mm²
Sweep: 31.5°
FCS AB Fin Size:
Center Fin Size:
Center Base: 4.18 in. 109 mm
Center Depth: 4.52 in. 115 mm
Surface Area: 14.22 in.² 9173 mm²
Sweep: 32.3°
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