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True Ames
L-Flex
Designed by Malibu legend Greg Liddle in 1968, the L-Flex fin was created to complement his pioneering “modified displacement hull” surfboards, built around hydrodynamic boat-hull principles for smooth trim and effortless glide.
★★★★★5.0 (6)
In Stock
$91.00 – $109
Size
Color
The Fin
Designed by Malibu legend Greg Liddle in 1968, the L-Flex fin was created to complement his pioneering “modified displacement hull” surfboards, built around hydrodynamic boat-hull principles for smooth trim and effortless glide. Its precise flex and foil deliver projection, drive, and responsiveness, making it a favorite for boards built for speed and fluid, rail-driven turns. More than 40 years later, the L-Flex remains one of True Ames’ most refined and enduring designs—a testament to Greg’s vision and craftsmanship.
Form | Slender profile, thinner precision foil with optimal flex
Function | Provides down-the-line projection and positive response through turns
Feel | Will give your board an energetic and alive feeling
Overall | A soild and well-rounded choice for sensitive type surfboards that can benefit from engineered flex, fast acceleration, and full rail angagement
Specifications
ConstructionSolid Fiberglass
Sizes7.5 – 10
Colors4 options
Price Range$91.00 – $109
AvailabilityIn Stock
Reviews
What people say
Designed to make a board feel energetic and alive through down-the-line projection and positive response — the flex loads as you trim and projects you down the line, then springs you out of the turn.
This glass version is the one most hull riders favor for spring out of the bottom turn.
On a Liddle-style hull it is the intended match, delivering the acceleration, full-rail carves, and smooth transitions the hull is shaped around; on a speed-oriented mid-length it makes the board feel alive. It rewards forward trim and rail engagement — if your board is not a hull or speed shape, the Greenough 4A is more forgiving across the board.
More About This Fin
The L-Flex is Greg Liddle's single fin, drawn in 1968 to complement his modified displacement hulls with convex bottom contours, and is made by True Ames. It has a slender outline with a thinner, precision foil tuned for flex. Sizes include 7.5, 8, 8.5, 9, 9.5, and 10 inches, with 9-W and 9.5-W wide-base options that add base width for boards needing more drive low in the foil. It is intended for displacement hulls and speed-oriented mid-lengths.
Similar Fins
Greenough 4A›
The review frames the 4A as the broader do-everything single, where the L-Flex is the more specialized hull-and-speed fin that rewards forward trim and rail engagement.
L-Flex Volan›
The Volan version is the firmer option for riders who want a stiffer, heavier feel with less flex than this glass version.
$91.00 – $109