True Ames Greenough 4-A 9.75" Single Fin – A Versatile Longboard Classic
The True Ames Greenough 4-A 9.75" Single Fin is a staple in the world of longboarding—crafted to offer exceptional drive, responsive flex, and timeless flow. Based on George Greenough’s iconic template, this fin combines a solid base with a narrow, flexible tip, making it one of the most trusted and widely used fins in surfing history. Whether you’re noseriding, trimming, or carving smooth lines, the 4-A brings balance and grace to your every turn.
The Gold Standard in Longboard Fins
With its full base, the 4-A provides powerful drive down the line and holds steady through turns, while the tapered tip adds a touch of spring and release at the end of each arc. This combination allows for classic longboard control with just the right amount of pivot and flex for dynamic, stylish surfing.
Ideal for a Wide Range of Boards
At 9.75", this size is perfect for traditional longboards, noseriders, and modern single-fin logs. It’s also a great choice for boards with a bit more tail rocker or those seeking improved maneuverability without sacrificing trim. The 9.75" size offers the sweet spot between control and looseness—ideal for surfers who want to flow from tip to tail with ease.
Why You’ll Love It
- 9.75" height – versatile for classic and performance longboards
- Wide base delivers drive, hold, and stability
- Thin, flexible tip enhances responsiveness and smooth release
- Moderate rake for balanced turns and flow
- Iconic George Greenough design with a proven legacy
- Solid fiberglass construction with flat matte finish
Support a Family-Owned Surf Shop
When you purchase your gear from Rider Shack, you’re backing a small, surfer-owned shop dedicated to sharing the love of the ocean. We pride ourselves on offering the best gear, personalized service, and a connection to real surf culture. Your support helps us keep the local surf spirit alive.
The Fin That Does It All
If you’re looking for one longboard fin to rule them all, the True Ames Greenough 4-A 9.75" is a must-have. Elegant, versatile, and time-tested, it brings classic surf performance and style to any session.
