True Ames D2

The D2 is designed for standard US Box systems, which are the industry standard for most modern longboards. As long as your board has a 10-inch fin box, this fin will slide in and secure easily.

The 9-inch depth provides significant hold and stability, which is ideal for nose riding and maintaining a straight line. Because of the generous surface area, you will notice a more locked-in feel compared to smaller or more pivot-oriented fins.

This fin is built for a classic, traditional longboarding experience rather than high-performance maneuvers. It excels at sweeping turns and trim-focused surfing, making it better suited for cruisers or logs than for aggressive, vertical surfing.

The primary advantage is convenience and versatility. Because it uses a standard US Box system, you can easily swap it out for different conditions or remove it for safer travel, all without sacrificing the classic aesthetic of a 1960s-style fin.

The rear overhang is a design feature that mimics traditional glass-on fins, but it is engineered to fit standard boxes without issue. You simply insert the base into the box, slide it to your preferred position, and tighten the plate and screw.