There is a reason the True Ames Greenough 4-A Single Fin is the most iconic, functional and versatile single fin available... it works on just about anything! The Greenough 4-A has been True Ames' bread and butter for over 40 years now, and it is still the most popular single fin design there is. A truly well-balanced fin...the full base coupled with the 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.
The Smaller sizes (6" - 8") are phenomenal for 2 + 1 setups. The larger sizes (8.5" - 10.5") are great to use for Single Fin setups.
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