Captain Fin Co. CF Keel
Top Pick
Captain Fin Co.

Captain Fin Co. CF Keel

4.6

Best performance upgrade for surfers riding traditional twin fin fish boards.

A reliable, stiff fiberglass option for retro twin-fin enthusiasts. It balances a wider base with a subtle sweep to deliver consistent drive and smooth, predictable arcs on open faces.

$47.50

Out of stock
Board Type Compatibility Fish
Fin Set Configuration Twin Fin
Fin System Type Futures

Who it's for

  • Surfers seeking maximum speed and flow on open face waves
  • Twin-fin enthusiasts looking for a reliable all-around keel setup
  • Performance-oriented riders who value durable and responsive fin materials

Who should skip it

  • Progressive surfers wanting to perform sharp, vertical maneuvers
  • Owners of narrow-tailed boards or high-performance shortboards
  • Light-footed surfers riding extremely small or gutless summer waves

Performance breakdown

Drive and Acceleration

The wide base generates significant speed through flat sections effortlessly.

Excellent

Hold and Stability

Provides a locked-in feeling during long, drawn-out bottom turns.

Excellent

Flex Pattern

Stiff fiberglass construction offers minimal flex for a predictable, direct response.

Good

Turning Radius

Designed for sweeping arcs rather than tight, pivot-heavy maneuvers.

Good

Build Durability

Solid fiberglass layup withstands heavy use and minor reef impacts.

Excellent

Retro Compatibility

Perfectly tuned for traditional fish shapes and classic twin-fin setups.

Excellent

Key Specs

Material

Fiberglass

Fin System

Futures

Flex

Stiff

Foil

Flat

Fin Depth

5.35 inches

Fin Base Length

6.2 inches

Fin Area

25.99 square inches

Fin Set Configuration

Twin

Board Compatibility

Fish

Know before you buy

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Captain Fin Co. CF Keel

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