FCS II Reactor PC Thruster Fin Set – Size Medium – White Edition
The FCS II Reactor PC Thruster Fin Set – Size Medium – White Edition is built for surfers who want speed, tight turns, and fast tail release in everyday and punchy beach break conditions. With its upright Reactor template and lightweight Performance Core (PC) construction, this fin set is ideal for surfers who favor quick, progressive surfing with sharp direction changes.
When you purchase these fins from Rider Shack, you’re supporting a small, family-owned core surf shop run by surfers who are passionate about sharing the stoke of surfing and the ocean.
Overview
The Reactor belongs to FCS’s “Beach Break” fin family and is designed for surfing in the pocket. Its upright outline promotes faster rail-to-rail transitions, while the smaller center fin increases pivot and tail release—perfect for surfers who like to attack sections and surf with speed and precision.
- Fin Model: FCS II Reactor
- Fin Family: Reactor – Find Speed
- Set Type: Thruster (3-fin set)
- Material: Performance Core (PC)
- Color: White (FCS II White Edition)
- Size: Medium
- Fin System: FCS II
FCS II White Edition
The FCS II Essential Series White Edition blends classic surf style with modern performance. Inspired by traditional white fixed fins, the clean all-white look pairs effortlessly with any surfboard—no color clashes, just timeless design and proven feel.
Performance & Design
Reactor Template: Speed, Tight Turns & Snaps
The upright Reactor template is designed for surfers who want to generate speed quickly and fit tighter turns into steep sections. This shape excels in beach breaks and hollow waves where responsiveness and control are essential. The smaller center fin loosens up the tail for more progressive surfing.
- Designed for speed and tight turns with added tail release.
- Upright outline allows sharper, more acute directional changes.
- Smaller center fin increases pivot and maneuverability.
- Ideal for fast, progressive surfing styles.
Performance Core Construction
Performance Core (PC) fins are made using a multi-layered resin transfer molding process. The flex pattern extends progressively from the base through the tip, helping surfers maintain drive and hold through turns while keeping the fin lightweight and responsive.
- Lightweight construction with controlled flex.
- Progressive flex pattern for smooth power release.
- Versatile feel across a range of surf conditions.
Ideal Conditions
The Reactor performs best in hollow waves and is particularly well-suited for beach breaks, where speed, tight arcs, and quick reactions are key.
Board Compatibility
- Fin System: Designed to fit the FCS II Fin System
- Board Types: Recommended for performance shortboards with moderate-to-low rocker
Size & Specifications
Recommended Rider Weight – Size Medium
- Weight Range: 65–80 kg (145–175 lbs)
Fin Dimensions (Medium)
Side Fins
- Base: 4.33" (110 mm)
- Depth: 4.53" (115.0 mm)
- Area: 15.23 in² (9,824 mm²)
- Sweep: 32.0°
- Foil: Flat
Center Fin
- Base: 4.28" (108.7 mm)
- Depth: 4.41" (112.0 mm)
- Area: 14.22 in² (9,172 mm²)
- Sweep: 31.0°
- Foil: 50/50
Why Choose the FCS II Reactor?
- Built for speed, tight arcs, and quick directional changes.
- Excellent for beach breaks and hollow waves.
- Smaller center fin adds pivot and tail release.
- Performance Core construction balances flex, drive, and control.
- Tool-less FCS II installation.
- Clean White Edition aesthetic that matches any board.
Why Buy from Rider Shack?
Rider Shack is a small, family-owned core surf shop operated by surfers who care about putting the right gear under your feet. Every purchase supports a local surf shop dedicated to real surf knowledge, quality equipment, and keeping surf culture strong.
FAQ
What style of surfing are the Reactor fins best for?
Reactor fins are designed for fast, progressive surfing, offering speed, tight turns, and quick snaps—especially in beach break conditions.
What boards are these fins recommended for?
These fins are designed to fit the FCS II Fin System and are recommended for performance shortboards with moderate-to-low rocker.
What surfer weight is size Medium recommended for?
Size Medium is recommended for surfers weighing approximately 145–175 lbs (65–80 kg).
Why does the Reactor use a smaller center fin?
The smaller center fin increases pivot and tail release, making it easier to perform tight, progressive turns and quick direction changes.
Do these fins require tools for installation?
No. The FCS II system allows for fast, tool-less installation and removal.