Longboard surf fins play a crucial role in defining the performance and feel of a longboard, influencing everything from stability and control to maneuverability and glide. Typically, larger and more upright than shortboard fins, longboard fins can range from classic single fins that provide smooth, drawn-out turns and a traditional noseriding style, to 2+1 setups that add side bites for more drive and quicker turning response. The size, shape, and flex of the fin greatly affect how the board tracks down the line, pivots on the wave face, and holds in the pocket.
