Looking for maximum speed with added control for your fish or hybrid surfboard? This Quad Semi Keel Fin Set blends the classic flow of a twin fish with the precision and hold of a modern quad setup. Available at Noordzee Boardstore Surfshop Scheveningen your trusted surf shop by the North Sea.
This model is inspired by a traditional keel twin template. The original keel outline has been refined by removing surface area from the rear section and redesigning it into a compact, efficient trailer fin. The result is a balanced quad configuration featuring two semi-keel side fins with a classic look and slightly narrower profile, paired with two low-profile yet powerful rear stabilisers. This setup delivers the smooth drive and speed of a traditional twin fish, combined with the enhanced grip, stability, and control of a performance quad.
With its generous surface area, this quad fin set generates excellent drive in smaller waves while maintaining control in faster, more powerful sections. The soft, smooth curves of the outline translate directly into fluid rail-to-rail transitions and predictable handling — ideal for beach breaks like Scheveningen. Built with an advanced Hexagonal Core interior, these fins offer impressive surface area while remaining exceptionally lightweight. The optimized flex pattern provides:
- Fast acceleration off the take-off
- Responsive and controlled turns
- Strong down-the-line drive
- Stability at higher speeds
Side Fin Specifications
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Height: 4.85 in (approx. 123 mm)
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Base: 5.7 in (approx. 145 mm)
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Area: 21.2 in²
Rear (Trailer) Fin Specifications
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Height: 3.11 in (approx. 79 mm)
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Base: 4.15 in (approx. 105 mm)
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Area: 10.16 in²
Order online or visit our surf shop in Scheveningen for expert advice and personalized service.
