FCS Longboard Surfboard Fin Box Adapter

Genuine FCS
Longboard Fin Box Adapter

This neat little device allow you to change your 2+1 longboard to a thruster set-up in seconds. Simple to setup with levelling grub screws which allow the box to be fitted to perfection. You can then slot the centre fin in when you like, add the side fins, and away you go. The centre fin is held in by hidden grub screws that hold the fin tabs in place. Genuine FCS product.
NOTE: This adapter is made to fit in standard US boxes aka a longboard box. As any longboarder will tell you although these are theoretically the same they can vary very slightly in depth and width – as such this precision made adapter may require some small adjustment to fit your box exactly..