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FCS compatible. Side fins Depth 4.5” Base 4.3" Foil flat inside face, Center fin Depth 4.5” Base 4.3” Foil 50/50
The 4.5" Raked Thruster Fins in carbon fiber TekFlex are built for surfers who want clean drive, smooth arcs, and dependable hold at speed. The raked outline promotes longer, more drawn-out turns, while the TekFlex carbon construction balances stiffness and controlled flex for fast response without feeling rigid.
Designed for the FCS fin system, this thruster set suits modern shortboards and performance hybrids, delivering confident rail engagement and predictable release in a wide range of conditions—from punchy beach breaks to clean point waves.
Key Features
Thruster (3-fin) configuration for balanced performance
4.5" raked template for smooth, flowing turns
Carbon fiber TekFlex construction for responsive flex and drive
FCS compatible – secure fit in standard FCS fin boxes
Lightweight feel with excellent durability
Ideal for performance shortboards and hybrids
Performance Benefits
Strong down-the-line drive with controlled hold
Smooth, drawn-out turns thanks to raked template
Responsive feel under load with quick recovery
Reliable stability at speed without sacrificing manoeuvrability
Recommended Conditions
Waist-high to overhead surf
Beach breaks, points, and reefs
Clean to punchy conditions where drive and control matter
Fin Specifications
Configuration: Thruster (3 fins)
Fin Height: 4.5"
Template: Raked
Construction: Carbon Fiber TekFlex
System: FCS compatible.
Set Includes: 3 fins
FAQs
What does a raked fin template do?
A raked template creates longer, smoother turns and adds hold at speed, making it ideal for powerful or open-face surfing.
What is TekFlex carbon fiber?
TekFlex combines carbon fiber reinforcement with tuned flex, delivering fast response while maintaining a natural feel through turns.
Are these fins compatible with FCS boxes?
Yes. These fins are fully FCS compatible and fit standard FCS fin boxes.
Great for surfers looking for a fin that'll feel dependable in bigger waves, but still want the ability to release the tail and surf progressively in smaller waves.
TekFlex fins have a carbon fiber over hex core construction making them lighter, with the strength and responsiveness of solid Pro Glass fiberglass.
They are perfect for powerful surfers or powerful waves.
TekFlex produces a robust, firm flex pattern without added weight. They are part of the next generation of fin manufacturing technology, engineered to be stiff and light.
These fins will give you a solid and engaged feel for those big drops, but be lightweight and responsive.
They are considered a medium size fin in the raked template category, for fast on-rail surfing and exceptional speed and drive down the line.
Ideal Conditions
Hollow steep waves, punchy beach breaks.
Board Types
Performance boards with deep concaves and moderate-to-extreme rocker.
Free Delivery: Everywhere in Australia.
Tracking: Quick & easy online tracking on all fins.
Peace of Mind: All our fins are insured against loss in transit.
Prompt Australian Dispatch: All items are sent from stock held in Sydney on the same or next business day.
Returns: 30-day, no questions asked returns, for unused full price items.
No More to Pay: No surcharges added at the checkout.
Faster Express Shipping just $10 per order at the checkout.