2010 Quad Convertible

The World’s first Quad fin wave boards - more drive, more traction, the ability to generate more speed on the wave face, turn closer and tighter, ride more vertical with the ability to go where you want, when you want. When going out through waves, the Quads also help you to stay upwind better than single or twin fin boards, thus positioning you to catch more waves.

The Quad wave concept was born 2 years ago when Svein Rasmussen and Scott McKercher first started working with Quad fin setups on wave SUP boards, initially with single fin setups to thrusters and finally Quad fins. The unique fin size combination, with the larger fin in front and the smaller fin behind, as well as the exact fin box positioning, the fin foil/stiffness ratio and the fin box selection were the key in making the Quad concept work.

What does a Quad set up offer?
Quads produce an enormous amount of drive. There’s a lot of fin area spread out over the tail, so when you push the fins, they work together to channel the water’s energy into the board. They create extra drive and speed and they can do this whether you’re making long drawn-out turns, or tight squirty turns. Go where you want, when you want and generate more speed on the wave face. Ride faster, ride more vertical.

Why is the front fin larger than the back fin?
Starboard SUP and also surfboard shapers have been utilizing quads for some time now, with many high profile surfers such as Kelly Slater experimenting with these designs. Starboard R&D have tried nine different fin setups multiplied by different stiffness configurations and found that there was a lot of extra drive and a quicker board-turning initiation created by having a set of larger fins forward of a set of smaller back fins. The front fins have a size tuning range from 16 to 11cm.

For the convertibles: when to choose the single fin set up and when to choose the quad fin set up? Choose the single fin for more bump and jump scenarios and Quads to for pure wave orientated sailing.