FCS II Al Merrick PC Aircore Fins

These fins are designed for performance shortboards, specifically those with deep concaves and moderate-to-extreme rocker. They are engineered to complement boards that need extra drive and hold in steeper, more demanding wave conditions.

The Aircore construction uses a lightweight foam core to reduce the overall weight of the fin without sacrificing stiffness. This makes the board feel more responsive and lively under your feet, especially when transitioning between turns.

The smaller center fin is a deliberate design choice to reduce drag and facilitate a quicker release during turns. It allows you to break the tail free more easily when performing high-performance maneuvers, while the larger side fins maintain the necessary drive.

No, these are FCS II fins designed for the keyless FCS II system. While they can be installed in older dual-tab boxes using grub screws, they are optimized for the click-in, click-out convenience of the FCS II system.

These fins are specifically tuned for radical, progressive surfing and advanced maneuvers. If you are still learning the basics, you might find them too sensitive; they are better suited for intermediate to advanced surfers looking to push their performance in punchy or hollow waves.