FCS II CI Keel Twin Fin
Best high performance keel fins for fish surfboard enthusiasts.
These fins offer a refined balance of drive and maneuverability for fish-style boards. By combining a stiff base with a responsive tip, they provide the stability required for power surfing without sacrificing the lively feel of traditional fiberglass.
$145.99
at
UsedSurf (retailer)
More CI Keel options
Who it's for
- Surfers seeking maximum down-the-line speed on open face waves
- Power surfers who prefer a traditional, solid feel underfoot
- Travelers and frequent board swappers who value efficiency and convenience
Who should skip it
- Performance-oriented riders looking for tight, snappy turns in the pocket
- Owners of narrow-tailed boards requiring more release and agility
- Weight-conscious surfers prioritizing the lightest possible equipment setup
Performance breakdown
Drive and Speed
The stiff base generates exceptional speed through flat sections.
Maneuverability
Responsive tip flex allows for surprisingly tight, controlled turns.
Construction Durability
Performance Glass offers a robust, long-lasting build for daily sessions.
Installation Ease
The tool-less FCS II system makes swapping fins incredibly fast.
Stability
Provides a locked-in feel essential for larger, powerful surfers.
Versatility
Best suited for fish shapes rather than high-performance shortboards.
Key Specs
Material
Performance Glass (Fiberglass)
Fin System
FCS II
Fin Type
Twin, Keel
Base Length
6.41 inches
Depth
5.15 inches
Area
25.53 square inches
Sweep
37.0 degrees
Foil
Flat
Flex Pattern
Stiff base, responsive tip
Rider Size
165+ lbs
Know before you buy
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Ask Metto anything about the FCS II CI Keel Twin Fin before you decide.
