II Retro Keel PG Twin Fin

The FCS II fin system is a user-friendly fin attachment system that allows you to easily install and remove fins from your surfboard. This flexibility lets you customize your board's performance based on your surfing style and the water conditions, enhancing your overall experience on the waves.

Rake refers to the angle of the fin's leading edge. A higher rake angle provides better control and maneuverability, making it easier to navigate turns. Conversely, a lower rake allows for quicker, more responsive turns. Choosing the right rake can significantly impact how your board handles in different surf conditions.

The foil of a fin describes its shape when viewed from the side. For example, a 70/30 foil means that 70% of the fin's thickness is at the base and 30% at the tip. The design of the foil affects water flow over the fin, influencing speed, lift, and maneuverability. Selecting the right foil can enhance your performance based on your surfing style.

Aspect ratio refers to the shape of the fin. A low aspect ratio means the fin is shorter and wider, which provides stability and ease of use, especially for fish-shaped surfboards. This design is ideal for surfers looking for a balance between speed and control, particularly in smaller waves.

Keel fins are a specific fin design commonly used in twin-fin setups, characterized by their wider shape. They offer a stable ride, making them perfect for fish-shaped boards. Keel fins help maintain speed and control, especially in smaller surf conditions, making them a great choice for surfers who prioritize stability.

To choose the right fins, consider your surfing style, the type of board you have, and the conditions you'll be surfing in. Look at the fin's rake, foil, and aspect ratio to find a combination that matches your preferences. If you're unsure, consulting with a knowledgeable surf shop or experienced surfers can help guide your decision.