US/Standard Base

Windsurfing Fins, check out our huge selection of True Ames, Select Fins, MFC, RRD, Black Project, Kona, US standard box / A-base options. In-line and closeouts, save big! Windsurfing fins Matching fin design and size to your board, sail size and sailing conditions will optimize windsurfing performance. A fin generates lift as it travels through the water, while your sail does the same when harnessing the wind. Balancing these lifting forces affect control and performance of your board. Too large of a fin can cause excessive lift and drag. Too small of a fin contributes to poor planing and cavitation (spin-out). Cavitation feels like your fin is no longer attached as your board slides sideways at high speed. This page features Fins with US / A box type bases.
  • True Ames Slalom Pointer A Base

    Great all around free sailing fin with moderate aspect ratio and slightly swept outline.

    From: $110.00

  • True Ames Convert A Base

    A fantastic all around fin. Superb jibing and very loose for a "wave blade".

    From: $130.00

  • Select FX Free Carve US base

    A 4WD fin that provides comfortable, easy ride qualities targets freestyle wave and freeride designs.

    From: $112.00

  • MFC All Around A Base

    All around fin ideal for bump-n-jump and wave conditions. Great wave / freewave design.

    From: $117.00

  • True Ames Surf Grass A Base

    A weed / surf sailing fin that's ideal for bump and jump and wave sailing conditions where weeds are a problem.

    From: $120.00

  • Fin Tab & Screw (US box)

    You lost it...we got it. Replacement Fin screw and plate for US fin box.
  • Fin Fast

    Unique fin screw allows for rapid securing of A-base fin to US slot fin box.
  • Epic Gear Fin Bags

    Individual padded slots protect your fins. Deluxe size holds the biggest fins in your stash.

    From: $40.00