True Ames Greenough 4-A 8.5" Single Fin – Precision, Flex, and Flow
The True Ames Greenough 4-A 8.5" Single Fin brings legendary performance in a more compact size—perfect for midlengths, smaller single-fin boards, or as a center fin in a 2+1 setup. Designed by iconic surfer and innovator George Greenough, the 4-A series is known for its perfect balance of drive, flex, and trim. This 8.5" version maintains all the features that made the original famous while offering quicker transitions and responsive control.
Designed for Style and Performance
With a wide base for solid drive and a narrow, flexible tip for fluid, sweeping turns, the 4-A offers a dynamic feel in the water. The moderate rake enhances hold and control while still allowing for smooth pivots and rail-to-rail movement. Whether you're trimming down the line or transitioning through stylish turns, the 8.5" 4-A provides unmatched versatility and feel.
Perfect for Midlengths and 2+1 Setups
This fin works beautifully as a single fin in smaller boards or midlengths and shines when paired with side bites in a 2+1 configuration. Its responsiveness and flex make it a favorite among surfers who want speed, agility, and classic glide—without the bulk of a full-sized longboard fin.
Why You'll Love It
- 8.5" height – ideal for midlengths, eggs, and 2+1 setups
- Full base offers reliable drive and down-the-line speed
- Flexible tip for clean, responsive turns
- Balanced rake and flex pattern for flow and control
- Timeless Greenough template trusted by generations of surfers
- Solid fiberglass construction with a flat matte finish
Support a Family-Owned Surf Shop
When you order from Rider Shack, you’re supporting a local, family-run surf shop built by surfers who care deeply about the gear, the culture, and the community. Every purchase helps us continue to provide high-quality equipment and share our love for surfing with every customer who walks through our door or visits online.
A Must-Have Fin for Style-Focused Surfing
If you're looking for a single fin that adds classic feel, effortless trim, and reliable control, the True Ames Greenough 4-A 8.5" is the perfect match. Slide it into your midlength or funboard and experience the balance and elegance that only a Greenough design can provide.
