True Ames Thruster Fins

These thruster fins are designed as an all-purpose set, meaning they perform reliably in a wide variety of conditions. Their balanced profile makes them a great choice for everyday surf, offering enough drive for speed while remaining loose enough for fluid turns.

Solid fiberglass provides a stiffer, more consistent flex pattern compared to composite or plastic fins. This results in a very predictable and stable feel, which is ideal for surfers who want to push hard through turns without the fin flexing or feeling twitchy.

These fins are specific to the fin box system they are designed for, so you need to check if your surfboard uses FCS or Futures boxes. True Ames manufactures these in both configurations, so ensure you select the version that matches your board's box type before purchasing.

While these are high-performance fins, their predictable and balanced design makes them accessible for intermediate surfers looking to improve their turns. Beginners might find them slightly stiffer than the softer, more forgiving fins often found on entry-level boards, but they are a great upgrade as you progress.

With a height of 4.58 inches and a base of 4.53 inches, these fins offer a medium-sized template that provides a good balance between hold and release. This area distribution is standard for a thruster setup, ensuring you have enough surface area to generate speed without feeling like the board is locked in too firmly into a single track.