Fin K4 SHARKII FRONT 1 DEG (Super Stiff)
Fin K4 SHARKII FRONT 1 DEG (Super Stiff)
Fin K4 SHARKII FRONT 1 DEG (Super Stiff)
Fin K4 SHARKII FRONT 1 DEG (Super Stiff)

Fin K4 SHARKII FRONT 1 DEG (Super Stiff)

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The new SharkII front, born from the request of K4 athletes who were looking for a faster and more grippy fin for both their Quads and Thrusters. So a fin with a low tip area was designed using the "stiff" material, streamlined to give more flex and grip in the rear, widening the base to add hold and drive. The result was an exceptional fin with a feeling of speed and precision, and with the right balance between grip and release that brought Alex Mussolini to the podium in Tenerife'18. Also available the new 'Star Box' present on some models of Starboard and Severne.

A 1Deg option has also been added in the SB version. For those straight board models who want to add a bit of "toe in" for a looser feeling

Flex: Super Stiff

The K4 fins are a unique product in the windsurfing world, they are made using highly engineered composite polymers with maximum load of high modulus fibers. The performance of these fins is exceptional in terms of flex, reflex, lightness and damage resistance. Compared to the classic G10 fins, these fins are lighter and have a superior reflex.

Super Stiff: was developed for an alternative to the original Flex material, which compared to the stiffness of a G10 gives a faster SLR and better memory for speed, maneuverability and acceleration making this material perfect for the Wave All-Round .


Our products are built with more innovative techniques and i best materials. Every detail it is designed for performance purposes.

Superior quality

Use of innovative and premium materials

Better performance

Thanks to high performance products with an immediate feeling

Developed by real riders

Tested every day by Pro

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