Collection: Greenough 4A

The most sold single fin ever!

From the mind of: George Greenough

A backyard craftsman and inventor, Greenough became known for his hugely influential board and fin designs dating back to his high school days in the early 60s where he would shape his first boards in wood shop out of balsa. Fast forward a few years and the Velo-spoon (short for velocity) was created. A short, red kneeboard with the deck scooped and a wide flex-tail. This board rocketed Greenough into the next dimension of wave-riding as it showcased a combination of design ideas to allow the types of maneuvers that inspired generations of surfers to this day.

His kneeboards weren’t the only thing catching the attention of the surf world. The high-aspect ratio fins Greenough created to compliment his kneeboards, a direct influence of sea creatures, took the world by storm. The likes of Nat Young and Bob McTavish took notice and soon the best of the best surfers were ditching their D-fins for Greenough’s design and in 1966, was a direct influence to Nat’s winning of the world surfing championships and the ushering in of the shortboard revolution.

The Greenough 4-A is not only the bread and butter of True Ames, but it’s also been the most popular single fin worldwide for decades–and for good reason–its incredible functionality and versatility means it’ll work on just about anything.The man behind this revolutionary fin is George Greenough, whom the surf world is forever indebted to for his wave-riding performance innovations beginning in the '60s. Greenough ultimately paved the way from traditional logging to more progressive surfing in the pocket through the development of his Velo-Spoon kneeboard designs. To complement his kneeboards, Greenough found inspiration from mother nature for his fin templates through studying the tail fins of tuna–one of the fastest and most maneuverable fish in the ocean. The subsequent high-aspect ratio design he created allowed surfers to place themselves in more critical parts of the wave and execute more radical turns; it truly ushered in a new era of high performance capability.

FIN PERFORMANCE

History lesson aside, the Greenough 4-A is a truly well-balanced fin. Its full base coupled with a tapering, moderately flexible tip provides a solid amount of drive off the bottom, and an acute responsiveness through arcing turns. Designed for both speed generation and spending time surfing in the pocket, the 4-A is a fin that will hold when you need it to and release when the time is right.

 

• A true all-arounder, the 4-A is one of the most versatile single fins ever designed 
• The larger sizes are great for single fin longboards, while the smaller and medium sizes pair well with mid-lengths, performance single fins, and 2+1’s
• Best of both worlds performance: solid base and width create stability and drive, while the rake and flexible tip enables top-to-bottom turns and maneuverability
• Solid fiberglass construction, flat matte finish

   

START YOUR GREENOUGH 4A COLLECTION TODAY!