Performer Quad Rear

Yes, these are designed specifically for the FCS II system, allowing for a tool-less installation that clicks directly into your fin boxes.

The Inside Foil Technology (IFT) creates a more efficient hydrodynamic flow across the surface of the fin, which helps generate extra speed and provides a smoother, more predictable feel during turns.

While you can pair them with various front fins, they are designed to complement the Performer series. Mixing them with other templates is possible, but using them as part of a complete Performer quad setup will give you the most balanced and consistent performance.

Glass Flex is a molded engineering-grade polymer that offers a good balance of durability and flex. While it is robust for everyday use, it is still a performance material, so you should avoid heavy impact with rocks or reef to maintain the integrity of the foil.

These fins are optimized for riders up to 175 lbs. If you exceed this weight, you might find the flex pattern too soft, which can lead to a loss of drive and stability in larger or more powerful surf.

These are highly versatile and work well across a variety of board types, including fish, shortboards, and even performance longboards. They are an excellent choice if you want to add a quad setup to a board that currently runs as a thruster or twin.