Ultra lite thruster surfboard fins installed in a board with FCS II fin system
Ultra lite thruster surfboard fins installed in a board with FCS II fin system

4.6" Ultra Lite Thruster Fins – Black Xtreme ProCarbon | FCS II Compatible (Set of 3)

$109.00

Lightweight control for fast, responsive surfing.
Precision ProCarbon construction with a balanced template suited to performance shortboards and hybrid designs. Supplied as a set of three fins compatible with the FCS II system.

The 4.6" Ultra Lite Thruster Fins are engineered for surfers seeking reduced weight, quick acceleration, and reliable hold through turns. The refined thruster template provides a controlled blend of drive and release, supporting progressive manoeuvres without excess stiffness.

Manufactured from Xtreme ProCarbon composite, the fins maintain structural integrity under load while minimising overall mass. This construction promotes rapid rail-to-rail transitions and efficient energy transfer in everyday surf conditions.

Designed for direct installation into FCS II fin boxes, the set enables secure placement without modification. Suitable for a wide range of modern shortboards and performance-oriented hybrids.

Key features

  • 4.6" thruster template for balanced drive and release

  • Lightweight Xtreme ProCarbon composite construction

  • Responsive flex pattern for controlled turning

  • Black finish with low-profile visual appearance

  • FCS II compatible installation

  • Supplied as a matched set of three fins

Ideal for

  • Performance shortboards

  • Hybrid shortboard shapes

  • Surfers seeking lightweight response

  • Small-to-medium everyday surf conditions

  • Progressive turning and rail-to-rail surfing

Why choose this product

  • Reduced weight improves manoeuvrability

  • Stable flex profile maintains control under pressure

  • Durable composite construction supports regular use

  • Clean, neutral template suits varied board designs

  • Direct compatibility with FCS II fin systems

Compatibility

Compatible with FCS II fin boxes.
Not designed for sliding center fin box systems.

Frequently Asked Questions

Are these fins suitable for beginners?
Yes. The balanced thruster template provides predictable control that suits a wide range of skill levels.

What board size works best with 4.6" fins?
They are typically suited to standard shortboards and hybrids ridden in everyday surf conditions.

Do I need screws to install these fins?
No. FCS II compatible fins are designed for direct installation without screws, though optional grub screws may be used for additional security.

Summary

Lightweight 4.6-inch thruster surfboard fins constructed from Xtreme ProCarbon composite for responsive turning, controlled flex, and everyday performance. Designed for performance shortboards and hybrids, this three-fin set installs directly into FCS II fin boxes.

Lightweight control for fast, responsive surfing.
Precision ProCarbon construction with a balanced template suited to performance shortboards and hybrid designs. Supplied as a set of three fins compatible with the FCS II system.

The 4.6" Ultra Lite Thruster Fins are engineered for surfers seeking reduced weight, quick acceleration, and reliable hold through turns. The refined thruster template provides a controlled blend of drive and release, supporting progressive manoeuvres without excess stiffness.

Manufactured from Xtreme ProCarbon composite, the fins maintain structural integrity under load while minimising overall mass. This construction promotes rapid rail-to-rail transitions and efficient energy transfer in everyday surf conditions.

Designed for direct installation into FCS II fin boxes, the set enables secure placement without modification. Suitable for a wide range of modern shortboards and performance-oriented hybrids.

Key features

  • 4.6" thruster template for balanced drive and release

  • Lightweight Xtreme ProCarbon composite construction

  • Responsive flex pattern for controlled turning

  • Black finish with low-profile visual appearance

  • FCS II compatible installation

  • Supplied as a matched set of three fins

Ideal for

  • Performance shortboards

  • Hybrid shortboard shapes

  • Surfers seeking lightweight response

  • Small-to-medium everyday surf conditions

  • Progressive turning and rail-to-rail surfing

Why choose this product

  • Reduced weight improves manoeuvrability

  • Stable flex profile maintains control under pressure

  • Durable composite construction supports regular use

  • Clean, neutral template suits varied board designs

  • Direct compatibility with FCS II fin systems

Compatibility

Compatible with FCS II fin boxes.
Not designed for sliding center fin box systems.

Frequently Asked Questions

Are these fins suitable for beginners?
Yes. The balanced thruster template provides predictable control that suits a wide range of skill levels.

What board size works best with 4.6" fins?
They are typically suited to standard shortboards and hybrids ridden in everyday surf conditions.

Do I need screws to install these fins?
No. FCS II compatible fins are designed for direct installation without screws, though optional grub screws may be used for additional security.

Summary

Lightweight 4.6-inch thruster surfboard fins constructed from Xtreme ProCarbon composite for responsive turning, controlled flex, and everyday performance. Designed for performance shortboards and hybrids, this three-fin set installs directly into FCS II fin boxes.

FCSII compatible. Depth 4.6" Base 4.4" Foil flat inside face on side fins, 50/50 on center fin.

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.

Express Shipping for just $10 per order at the checkout.