FCS II MB Keel Fin
Top Pick
FCS

FCS II MB Keel Fin

4.6

Best high performance keel for retro fish enthusiasts.

A direct replacement component for a specific high-performance quad fin setup. These fins maintain the original drive and speed characteristics, ensuring your board remains fully functional without needing to purchase an entire new set.

$75.00

In stock

at

Surffcs

Board Type Compatibility Fish
Fin System Type FCS II
FCS I
FCS II

Who it's for

  • Fish surfboard riders seeking maximum speed and flow.
  • Surfers who value quick transitions and convenience at the beach.
  • Power surfers wanting a locked-in feel on wide-tailed boards.

Who should skip it

  • Shortboarders looking for a loose, vertical surfing style.
  • Owners of surfboards with Futures or original FCS fin systems.
  • Budget-conscious surfers looking for a low-cost hardware fix.

Performance breakdown

Speed Generation

The keel shape excels at maintaining momentum through flat, mushy sections.

Excellent

Drive and Hold

Provides exceptional stability and projection for wide-tail fish surfboard designs.

Excellent

Construction Durability

Performance Glass offers a stiff, reliable flex pattern that resists damage.

Excellent

Installation Ease

The tool-less FCS II system makes swapping fins quick and effortless.

Excellent

Turn Responsiveness

Designed for smooth, drawn-out lines rather than tight, snappy maneuvers.

Good

System Compatibility

Perfectly engineered to integrate seamlessly with existing Matt Biolos quad sets.

Excellent

Key Specs

Fin System

FCS II

Material

Performance Glass

Fin Type

Keel

Compatibility

Matt Biolos PG Split Keel Quad sets

Board Type Compatibility

Fish

Know before you buy

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FCS II MB Keel Fin

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Surffcs
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In stock
$75.00
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