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

$109.00

Ultra-light, ultra-responsive thruster fins built for speed and precision. Perfect for surfers chasing fast reactions and high-performance control.

Ultra Lite construction reduces weight while maintaining strength and flex

Ultra-light, ultra-responsive thruster fins built for speed and precision. Perfect for surfers chasing fast reactions and high-performance control.

Ultra Lite construction reduces weight while maintaining strength and flex

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

The 4.6" Ultra Lite Thruster Fins are designed for surfers who want maximum speed, fast transitions, and minimal drag. Built from black Xtreme ProCarbon, this fin set delivers an ultra-lightweight feel with exceptional stiffness and rebound, helping generate instant acceleration and precise control.

The balanced 4.6" thruster template provides all-round performance, making these fins ideal for modern shortboards and high-performance surfboards. With FCS II compatibility, they install tool-free and lock securely into the board, offering confidence in powerful turns and critical sections.

Key Features

  • Thruster (3-fin) configuration for all-round performance

  • 4.6" fin height for speed and manoeuvrability balance

  • Black Xtreme ProCarbon construction for ultra-light weight and fast response

  • High stiffness with controlled flex return

  • FCS II compatible – tool-free installation

  • Ideal for performance shortboards and step-ups

Performance Benefits

  • Rapid acceleration with reduced drag

  • Lightning-fast rail-to-rail transitions

  • Stable feel at high speed

  • Explosive drive out of turns

Recommended Conditions

  • Waist-high to overhead surf

  • Beach breaks, reefs, and point waves

  • Clean, punchy, or fast conditions

Fin Specifications

  • Configuration: Thruster (3 fins)

  • Fin Height: 4.6"

  • Construction: Black Xtreme ProCarbon

  • System: FCS II compatible

  • Set Includes: 3 fins

FAQs

What makes Xtreme ProCarbon different from standard carbon fins?
Xtreme ProCarbon offers higher stiffness-to-weight ratio, delivering faster response and reduced swing weight.

Are these fins suitable for everyday surfing?
Yes. While designed for high performance, the balanced template makes them versatile for daily sessions.

Do these fins require screws?
No. These fins are FCS II compatible and install securely without tools.

Ultra Lite fins are designed with an extremely light high-density epoxy foam core wrapped in genuine carbon and epoxy composite laminate for outstanding durability and strength.

This is a popular composite construction method that balances weight, flex, and strength.

These FCSII compatible Xtreme Pro Carbon fins are perfect for surfers seeking extreme performance.

They are acknowledged as being the lightest robust fins available, catering to those looking to enhance their surfing experience.

So light they float!

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.

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