FIN MATERIAL PERFORMANCE CORE CARBON. FIN SIZE LARGE (75 - 90Kg / 165 - 200 Lbs). FIN SPECS Base: 4.41" / 112mm, Depth: 4.74" / 120mm, Area: 15.26"^2 / 9847mm^2, Sweep: 32.9 degrees, Foil: Flat. Matt 'Mayhem' Biolos's signature template delivers a livel
The FCS system (Fin Control System) was designed by Brian A. Whitty in Elanora, Australia, and patented on November 7, 1995. It can be recognized by the 2 tabs on the fins which are designed to fit into a securing plug that attaches the fin to the board.