4.75” Advanced Thruster Fins – Carbon Fiber Green TekFlex | FCS II Compatible (Set of 3)

$109.00

Explosive drive with controlled flex — carbon-reinforced TekFlex thruster fins built for speed, snap, and confidence at pace.

Explosive drive with controlled flex — carbon-reinforced TekFlex thruster fins built for speed, snap, and confidence at pace.

FCSII compatible. Side fins Depth 4.75 Base 4.5" Foil flat inside face, Center fin Depth 4.75” Base 4.5” Foil 50/50

The 4.75” Advanced Thruster Fins are engineered for surfers chasing speed, precision, and controlled flex in a modern thruster setup. Built using carbon fiber reinforced TekFlex, these fins deliver a lively yet stable feel—loading up under pressure and springing back for explosive projection out of turns.

The performance hex composite core provides progressive flex through the tip, while the carbon fiber layers add torsional stiffness for drive and control at higher speeds. Finished in a distinctive carbon-on-green colourway, these fins balance performance aesthetics with functional design.

Designed for FCS II fin boxes, this tool-less thruster set locks in securely and is ideal for shortboards, step-ups, and performance hybrids in everyday to punchy conditions.

⭐ Key Features & Benefits

  • Thruster fin setup – balanced speed, control, and versatility

  • 4.75” fin size – ideal for medium to larger surfers

  • Carbon fiber reinforced TekFlex – responsive, spring-loaded flex

  • High drive with controlled release

  • FCS II compatible – tool-less installation

  • Carbon on green performance finish

  • Set of three fins included

🧭 Best Suited For

  • Performance shortboards

  • All-round thruster setups

  • Medium to powerful waves

  • Surfers wanting snap, drive, and speed through turns

  • Progressive surfing with strong rail engagement

❓ FAQs

Will these fins fit my board?
Yes. These fins are FCS II compatible and will fit any surfboard designed for the FCS II thruster system.

What does carbon fiber add to these fins?
Carbon fiber increases torsional stiffness and response, giving stronger drive and faster recovery out of turns compared to standard composite fins.

What is TekFlex?
TekFlex is a performance composite designed to deliver controlled flex and rebound, offering a more dynamic feel than solid fiberglass while remaining stable at speed.

We include

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.

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