Futures Fins QD2 4.0 Blackstix Rear Quad Fins
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Looking to turn your favorite Thruster set into a Quad? This pair of Quad Rears can be combined with any Futures front fins to suit your riding preference, board design and waves. With a symmetrical foil, these rears cater to fluid rail to rail surfing and speed, and will favor boards that have the rear boxes set off the rail, closer to the stringer.
Medium (145lbs - 195lbs) (65kg - 88kg)
Blackstix have a flexible Carbon Fiber tip that loads up and releases energy for generating speed when you need it. These are the lightest fins in the Futures line.
The 80:20 Foil is a balance between a flat and symmetrical foil. This allows you to get vertical on the face of the wave and hold you through a drawn out bottom turn.