FCS Longboard Center Box Adapter


6 in stock



Box Adapter

Insert this product into your longboard fin box to allow an FCS thruster rear to replace your traditional longboard fin.   Perfect for experimenting with alternative fin setups to achieve that feel you’re looking for.  Maybe it’s just running a much smaller fin simply aimed at loosening up your single fin ride.

Also ideal for retro short or mini-mal boards with single or 2+1 fin box layouts.

Designed in collaboration with the world’s leading surf athletes and surfboard shapers to encourage a vast array of fin alternatives suited to a variety of board models, wave conditions and surfing styles. 


  • Change from a traditional longboard fin to a FCS thruster set up in seconds.
  • Allows your longboard to take a smaller FCS 1 centre fin.
  • The adapter is adjustable for deeper longboard boxes.


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