The Mens FCS Knubster Centre Keel Fin in Red. The affordable way to add a new dimension to your surfing. Developed by Sean Mattison for Von Sol surfboards, the FCS Knubster is essentially a center keel fin that can be added to any quad set-up. The fin will increase drive and provide directional control through turns, without sacrificing speed, flow, or the freedom of movement typically associated with a quad. The “KNUBSTER” is designed with a single tab that allows the fin to be positioned in the forward and rear center plug to cater to the individual drive requirements of each surfer.

Features

• center keel fin
• 3 3/4″ by 2″ high

Product code: 4000500768537492

Founded in 1995 in Australia, FCS is a performance surfboard fin system and surf accessories brand. Signature FCS Fins like the M5, K3 or Julian Wilson models come with FCS 2 (II) or (I) fin systems, and with Twin, Tri / Thruster or Quad fin set ups – in small, medium and large sizes. FCS : the fin control system.