FCS 2 H4 Tri-Fin Set Smoke S
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The FCS II H4 Tri-Fin Set, built to surf differently
Shoppers searching for the FCS II H4 tri-fin set are looking at a fin built to look and surf differently from any other FCS template. Precision Swiss engineering is matched with a highly evolved template to give an unprecedented level of control and predictability at high speeds, and radically different side and center fin shapes work together to create a powerful set with ultimate speed and drive.
How the side and center fins are shaped
The side fin profile has a lower section built for maximum acceleration, with a hatchet like tip that creates stability and control. The center fin uses a highly raked elliptical outline that reduces drag and gives a predictable feel when releasing through turns. The fin foils use a thicker base with a tapered tip, which optimizes flex and regulates how energy is released during rail to rail transitions. It belongs to the Accelerator fin family, which FCS describes as delivering speed, flow, and response with added control.
- Fin System: FCS II, Fin Set Up: Thruster, Construction: PC Carbon
- Precision Swiss engineering paired with high density uni-directional carbon fiber
- Lower side fin section for maximum acceleration, hatchet like tip for stability
- Highly raked elliptical center fin outline to reduce drag
- Dynamic trailing edge internal composite that resists sliding out under extreme load
- Recommended for performance shortboards with moderate to low rocker
Who this fin set is for
FCS recommends the H4 for a wide range of conditions, particularly critical, overhead waves, on performance shortboards with moderate to low rocker. It suits surfers pushing hard off the top who want a set that holds its line at speed without sliding out, since the internal composite in the trailing edge is built specifically to resist that under extreme load.
Fitting and care
This PC Carbon set uses the FCS II tool free plug and play system, so it locks into FCS II boxes without screws. Confirm each fin is seated fully before paddling out, and rinse the fins and boxes with fresh water after saltwater sessions since carbon fiber fins still need the same salt rinse as any other fin to keep the tabs clean.
Why buy it from Island Water Sports
Island Water Sports has outfitted South Florida surfers since 1978. Our team can help confirm the H4's Accelerator template and PC Carbon construction match your board and the overhead conditions you're chasing, in store or online.
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Specifications
- Brand
- FCS
- Product
- FCS 2 H4 Tri-Fin Set Smoke S
- Gender
- Unisex
- UPC
- 9340935001019
- MPN
- FH4S-CC01-SM-TS-R
- Feature
- Fin System: FCS II
- Feature
- Fin Set Up: Thruster
- Feature
- Construction: PC Carbon
Frequently Asked Questions
- What makes the FCS 2 H4 Tri-Fin Set different from other FCS fins?
- It uses precision Swiss engineering with radically different side and center fin templates, built for control and predictability at high speeds.
- What is the H4 fin set made of?
- PC Carbon construction using high density uni-directional carbon fiber with a custom orientation to transfer more energy into speed.
- What board type is the H4 recommended for?
- Performance shortboards with moderate to low rocker, in a wide range of conditions and particularly critical, overhead waves.
- What fin setup does the H4 come in?
- A thruster setup for the FCS II Fin System.
- What fin family is the H4 part of?
- The Accelerator family, described by FCS as delivering speed, flow, and response with added control.