Tri/Quad Fin Sets

Windsurfing Fins, check out our huge selection of Black Project, MFC, RRD, True Ames, Select Fins, in Slot Box options in Thruster, Tri Fin and Quad Fin sets with US and power box base options. In-line and closeouts, save big! Windsurfing fins. 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 Slot Box type bases.

Tri/Quad Fin Sets

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  1. Select Focus Weed Thruster Set Power
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    New Select Focus Weed Fin with Thruster Set – Is a weed fin set targeting bump-n-jump and wave sailing conditions. Power box base w Slot Box thruster set. CNC G10. Learn More

    Starting at $197.00

  2. Select Focus Weed Thruster Set US Box
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    New Select Focus Weed Fin with Thruster Set – Is a weed fin set targeting bump-n-jump and wave sailing conditions. US box base w Slot Box thruster set. CNC G10. Learn More

    Starting at $197.00

  3. Black Project Quad Fin Set
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    Quad fin slot box system – includes 2 sets mini Epic Slot box fins. 2 smaller pair combined with 2 larger pair. Ideal for Quad Slot box boards. Learn More

    Starting at $275.00

  4. RRD Freewave Side SB Poly V3 Fin Set
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    Freewave slot box fin sets ideal for modern Freestyle Wave boards. Learn More

    Starting at $95.00

  5. Epic Gear Fin Bags
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    Epic Gear fin bags - 2 size options. New exterior finish. Individual padded slots protect your fins. Deluxe size holds the biggest fins in your stash. Learn More

    Starting at $48.00

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5 Items

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