FCS II H4 Small Tri Fin Set

A fin like you’ve never seen before. The FCS II H4 Small Tri Fin Set is Swiss engineered, creating a perfect synergy between geometry and HI-FI materials. With two radically different side and center fin templates, the H4s strike the perfect balance of speed, flow, responsiveness and control.

High Density Uni Directional Carbon Fiber
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Light & super strong with custom orientation to transfer more of your energy into speed than any other fin.

Precision Swiss Engineered
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Creates perfect synergy between fin geometry & HI-FI materials, giving smooth & predictable feel.

Dynamic Trailing Edge
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Internal composite morphs under extreme load, enabling the fins to be pushed harder without sliding out.

Dimensions

Side Fins
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Base: 4.36" / Depth: 4.34" / Area: 14.29in² / Sweep: 38.3˚

Center Fin
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Base: 4.29" / Depth: 4.49" / Area: 13.82in² / Sweep: 37.2°

Features

Side Fins – Flat Foil
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A flat inside face combined with a convex outside face. The traditional flat sided foil offers an even combination of drive, pivot, and hold. Provides a very consistent, reliable feel over a wide variety of conditions.

50/50 Foil
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A symmetrical foil used on all centre fins where both sides are convex. Even water flow on both sides creates stability and control.

Board Types
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Recommended for performance shortboards with moderate-to-low rocker.

Ideal Conditions
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A wide range of conditions, particularly good in critical overhead waves.

Side Fin Profile
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Lower section produces maximum acceleration, while hatchet like tip creates stability & control.

Centre Fin Profile
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Highly raked elliptical outline reduces drag, and offers feeling of predictability when releasing through turns.

Fin Foils Template
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Thicker base with tapered tip optimises flex & regulates the release of energy during rail to rial transitions.

Includes

3 Fins

Specs

• Material:
  Carbon Fiber

• Fin Category:
  Thruster (Tri)

• Fin Box Compatibility:
  FCS II

• Includes:
  3 Fins

• Rider Size:
  S (105 – 155 lbs)

Other Notes

FCS products can only be shipped within the United States and Canada