North Sonar Alloy Mast to Board Adapter


  • The Sonar Foil System is connected to the board by a lightweight CNC-machined aluminium Board Adaptor with a tapered geometry locking connection that engages with the mast.
  • Fusing Board Adaptor and mast together to build one union for optimum load transfer and a stronger, more direct feeling and steering impulse when foiling.

Out of stock

  • Free Shipping in UAE For orders above AED 100.
  • 7 days easy returns.
  • Delivery within 1-2 working days.
  • World wide shipping.


    • 165 x 90 bolt pattern: The Sonar Board Adaptor can be mounted to any foil board with a 165x90mm bolt pattern.
    • Lightweight design
    • Precisely CNC-machined 6061-T6 anodised aluminum: Precisely CNC-machined.
    • Geometry locking connection between Mast and Adaptor: Between Mast and Adaptor.
    • Rubber gasket
    • Included in Foil Edition and also available as a separate piece.
    • Includes Board Adaptor, Foil Screw Pack A

What Pro Riders say:

    “The tapered adaptor incorporates a geometry locking connection for a better load transfer and more direct feel. Sometimes the smallest details make the biggest difference.” – Uli Sommerlatt, Foil Designer

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