True Ames Greenough 4A Longboard Fin

The 4A is a versatile all-rounder. It excels for surfers who want a mix of hold for nose-riding and enough responsiveness to perform smooth, drawn-out carves on the open face.

A 7-inch fin is generally considered a mid-sized option for a longboard. It offers a balance of stability and maneuverability, making it a great choice if you want your board to feel slightly looser and more turn-oriented than it would with a larger, traditional pivot fin.

Yes, this fin is designed for a standard single fin box system. It uses a standard plate and screw mechanism, so it should be compatible with almost any modern longboard or mid-length surfboard equipped with a single fin box.

A 50/50 foil means the fin is symmetrical on both sides. This creates a neutral, predictable feel that provides consistent hold and stability, which is essential for maintaining control during bottom turns and while riding in the pocket.

The fiberglass construction provides a specific flex pattern that is stiffer and more durable than plastic or composite alternatives. This material allows the fin to load up energy during a turn and release it smoothly, giving you that classic, responsive feel.