How To Put Your "US Box" Centre Fin Into A Paddleboard (ISUP)

Check the steps below or watch our video on how to attached your fin to your paddleboard.

Fin Installation

  1. Slide the two smaller side fins into place and insert the clip on the string into place to lock the fins.

  2. Remove the nut & bolt from the big centre US fin and slide the square nut into the front of the groove in the fin box.

  3. Slide the US fin into the fin box with the pin on the fin sliding into the groove at the rear of the fin box.

  4. Push the front of the fin into place and bolt it down into the square nut you previously put into position in the fin box at stage 1.

  5. Always remove fins when packing the board into its bag.