Hanalei A4C 550 Twin Dual Tab Base

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The A4C series has undergone extensive testing before being put into production. This testing process resulted in a lot of refinements and improvements to the series easily making them the most versatile fins in our range.

The shape of this series features a strong cutaway at the base and a reverse curve in the upper portion of the tip, adding more tip area. The trailing edge of the fin is shaped like an "S" in profile to better control the water flow off the trailing edge of the fin.  When coupled with the PHAT FOILS it further enhances the water flow on and off the fin.

The 550 is intended to be used as a TWIN FIN or as a larger front fin in a quad or thruster set up! To give you max power!

The Dual Tab fin base will fit FCS boxes (FCS2 With infill kit)


height: 5.50" [127mm]

base: 2.875" [73mm]

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