K4 fins are a unique innovation in windsurfing. Simply put they are different. Something we can all relate to is that 'of course, why wasn't it like that before' feeling. K4 answers that question and in doing so has opened up another page in windsurfing's progression book.
K4 fins are all about twins, tri's and quads. The new technology isn't appropriate for the longer single fins. The K4 multi-fin shapes, design, and innovation has come from water time. There is no better way to develop a product than trying it out with some good old fashioned, decent, water time. Coupling this with science and know how has culminated to something ground breaking.
When powering around the fins flex from the tip up. When Jumping and general sailing you feel the fins under the foot complimenting your movements. When heading up-wind you feel the fins flex and work with the power your putting through them. When landing they again flex and work with you, rather then against you
Waveriding is where the fins really excel. In your bottom turn the flex of the fins allow you to drive them hard and fast. As you're going through the bottom turn and your speed starts to drop off the fins give you something back. All that 'stored' energy from flex is given back to you when you need it most. In doing so you don't get stuck through your turn. You can power all the way through to the lip and smack it at full velocity.
Choosing your fins
You can mix and match your fins as your require. K4 fins are available in US Box (US), Slot Box (SB) and Mini Tuttle Box (MT)
The fins come in pairs