True Ames 8.8 Greenough Power Blade (Used)
The original design by George Greenough, the Power Blade pushes the limits of modern single-fin surfboards. Carefully selected materials, rigorously tested, and repeatedly refined, this board features a unique flex pattern structure that delivers performance comparable to a surfer’s stallion.
The most critical design element lies in the fin’s ‘head,’ which can be bent or twisted. This allows for variable traction, enabling the board’s tail to follow the nose and generate propulsion. Functionally similar to a fish’s tail, it produces thrust based on direction and attack angle by flexing or twisting forward and backward. With a narrow base, it minimizes water pressure resistance, delivering high responsiveness, speed, and maneuverability through a single fin.
The Power Blade ultimately meets three clear and strict requirements: structural rigidity at key points, specific flex characteristics, and torsional capability—all within a single fin.
| Specification | Detail |
|---|---|
| Fin Type | Single Fin |
| Design Origin | George Greenough |
| Flex Pattern | Unique Torsional and Bending Structure |
| Performance Focus | Responsiveness, Speed, Maneuverability |
FAQ
What makes the Power Blade different from traditional single-fin surfboards?
The Power Blade features a unique flex pattern and torsional design in the fin head, allowing it to bend and twist like a fish’s tail. This enables variable traction and responsive propulsion, improving speed and control compared to standard single-fin designs.
Is the Power Blade suitable for all skill levels?
The Power Blade is designed for advanced surfers who require high responsiveness and precise control. It may be challenging for beginners due to its performance characteristics and responsiveness.
Can the fin be adjusted for different wave conditions?
Yes, the fin’s head can be bent or twisted to adapt to different wave directions and attack angles, allowing surfers to optimize propulsion and balance in varying conditions.

Piers Ogden –
This board delivers exceptional responsiveness in the water. The fin’s ability to twist and flex makes it feel like a true single-fin with the agility of a slalom. I’ve used it in both small and medium waves and it handles well. The design is precise and the flex pattern is noticeable in how it tracks through the water.
Jessica Young –
I’ve tried several single-fin boards before, and this one stands out. The tail follows the nose smoothly, which gives a more natural feel. It’s not for beginners, but once you get the hang of it, it’s very stable and fast in choppy conditions.
Jonathan Greene –
The Power Blade performs exactly as described—like a fish tail in motion. I noticed a significant improvement in my ability to cut through waves and maintain balance. The flex pattern is subtle but effective, and the board feels light and quick.