K4 for RRD 3SW

FAQ

For which board was the K4 for RRD 3SW fin developed?

The K4 for RRD 3SW was developed in close cooperation with the Official Test Centre Weymouth and specifically tailored for the RRD 3SW board setup. It is therefore perfectly suited for RRD freestyle wave boards and harmonizes perfectly with their outline and fin box.

What conditions is the 3SW fin designed for?

The 3SW is a versatile freestyle wave fin and is suitable for flat water with chop, choppy waves, and classic wave conditions. According to the manufacturer, it also delivers impressive performance on larger wave boards.

What material is the K4 for RRD 3SW made of?

The fin is made of K4 'Super Stiff' composite – a plastic composite material that offers enough stiffness for direct acceleration and response while also providing enough flex for speed, grip, and control in turns.

In what sizes is the fin available?

The K4 for RRD 3SW is available in lengths of 18 cm and 20 cm and comes with a Power Box mount, matching the RRD 3SW setup.

Who is the K4 3SW fin suitable for?

The fin is aimed at windsurfers who ride a sporty freestyle wave setup and value direct response, grip in the wave, and a loose carving feel on the straights – from ambitious hobby surfers to experienced wave riders.

How is the fin mounted?

The K4 for RRD 3SW features a Power Box mount and is secured with a screw in the fin box of the RRD 3SW board. Make sure it is firmly seated and check the screw before every session.

How do I properly care for my K4 composite fin?

Rinse the fin with fresh water after every session to remove salt and sand residue. Regularly check the Power Box mount and the screw for cracks or damage to ensure the fin remains securely seated in the board.

What is included in the delivery?

You will receive a single K4 for RRD 3SW fin in the selected size with a Power Box mount. Mounting screws should be checked separately depending on the board and setup.