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jm quad QD2 3.75
techflex
Qd2 3.5 honeycomb
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.
dimensions
size:
X-Small (75lb - 115lb) (34kg - 52kg)
rear fins:
Height: 3.50"
base: 3.74"
area: 9.70"
Qd2 3.5 honeycomb
construction
honeycomb
A lightweight hexagonal core gives these fins the feel of glass-ons. Engineered with a medium flex pattern, stiffer than Blackstix but more flexible than Fiberglass.
RIDE NUMBER
6.9/10

Ride Number is all about how your equipment feels while you're surfing. Now you can choose a Speed Generating Feel that is springy and responsive by picking a fin in the 10-7 range, or a solid, engaged, and predictable feel from the Speed Control category rated 4-1. For a Balanced feel try a Ride Number of 7-4.

Learn more: RIDE NUMBER

foil
SYMMETRICAL FOIL
Symmetrical foil rear fins on quads give a fluid consistent feeling that is predictable in all conditions and is enhanced on quads when the rear fins are placed closely together.