JS Industries F6 Quad

The honeycomb core makes the fins significantly lighter than solid fiberglass alternatives. This construction creates a more responsive flex pattern, allowing the fin to load up and release energy more efficiently during turns.

The quad setup is incredibly versatile. Because it lacks a center fin, it creates less drag, which helps you generate speed in smaller, weaker waves while providing excellent hold and drive on larger, open-face waves.

These fins are designed to fit standard fin boxes. However, you should verify if your board is set up for a quad configuration, as this set includes four fins and requires four corresponding fin boxes on your board.

A quad setup typically offers more speed and drive because the water flows more freely without a center fin creating drag. Thruster setups, by contrast, generally offer more pivot and control in the pocket, making quads a better choice if you prioritize down-the-line speed.

The F6 template is generally considered a medium-to-large size fin. It is best suited for surfers in the 145 to 195-pound range, though your specific board volume and personal preference for hold versus looseness should also be considered.