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True Ames Fins

Shop True Ames Fins at Rider Shack in Los Angeles — one of the largest True Ames selections in Southern California. True Ames has been crafting premium longboard fins for decades, working with legendary shapers on templates that optimize your board's performance. Single fins, side bites, and 2+1 sets.

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True Ames 8.0" CI Spicy Fin

$84.00

True Ames 3.5" Small Box Fin

$56.00
  • True Ames 3.5" Small Box Fin

True Ames 8.0" California Classic Longboard Fin

$94.00

True Ames 8.5" Greenough 4-A Single Fin

$97.00
  • True Ames 8.5" Greenough 4-A Single Fin
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True Ames fins buying guide

True Ames has been making high-quality longboard fins since 1985, working directly with some of the most influential surfers and shapers in the sport. If you ride a traditional longboard or a performance midlength with a single fin setup, True Ames is one of the best starting points.

Templates we carry

Greenough 4-A — one of the most iconic longboard fin templates in surfing. Available 6.5"–10". Balances hold and pivot for versatile longboard performance.

California Classic — upright template with balanced hold and release. Good for all-around longboarding and nose-riding. Available in multiple sizes and constructions.

Skip Frye — designed with legendary shaper Skip Frye. Built for smooth flowing nose-riding lines.

Josh Farberow Flex and Pro Volan — performance-oriented templates with a flex tip for a lively feel.

Tyler Warren Pivot and Raked — for pivot turns and tight surfing off the tail.

Additional templates: L-Flex 8.5"–9.5", Apocalypse Yater, D-2, Hobie Log Flex, Lovelace v.Bowls, CI Spicy, CI Mid.

Sizes

We carry True Ames from 2.5" (small box) to 10.25". Most common longboard sizes: 8", 8.5", 9", 9.25", 9.5", 10". For size guidance by board length and style, see our single fins page.

Fin system compatibility

True Ames single fins fit standard US longboard fin boxes. FCS II and Futures single fins also fit the same standard US longboard box — no adapter required. True Ames also makes side bite fins in FCS and Futures versions. Browse side bite fins.

True Ames vs Flying Diamonds

Both are excellent longboard fin brands. True Ames is known for classic proven templates with a long track record — the Greenough 4-A has been trusted for decades. Flying Diamonds focuses on collaboration templates with active progressive surfers — newer designs reflecting contemporary performance longboarding. Browse Flying Diamonds fins to compare.

Related

All single fins · Flying Diamonds fins · Side bites · All fins · Longboards