Lib Tech Quad Fin

These fins are specifically designed for Lib Tech FOCII fin boxes. While they utilize the FCS II system, they are engineered for compatibility with Lib Tech's proprietary box setup, so you should verify your board's fin box system before purchasing.

The fore and aft adjustability allows you to fine-tune your board's pivot point. Moving the fins forward generally makes the board feel looser and easier to turn, while setting them further back increases hold and drive, which is helpful in larger or faster waves.

Yes, while they excel in larger, barreling waves due to their hold and drive, the medium size makes them a versatile choice for a wide range of conditions. They are designed to provide consistent speed and projection whether the surf is punchy or more relaxed.

The up-cycled construction is engineered to match the stiffness and flex patterns of high-performance fins. You get the same reliable hold and responsiveness you would expect from premium materials, but with a reduced environmental footprint.

A quad setup typically offers more speed and hold through turns compared to a thruster, making it a great choice if you want to generate speed down the line or need extra grip in steep sections. If you prefer a looser, more pivot-oriented feel, you might find the quad setup provides a different, faster sensation.