4.75 inch GM2 thruster fins in black Pro Glass FCS compatible
GM2 thruster fin set installed in FCS fin boxes on surfboard
4.75 inch GM2 thruster fins in black Pro Glass FCS compatible
GM2 thruster fin set installed in FCS fin boxes on surfboard

4.75" GM2 Thruster Fins – Black Pro Glass (FCS Compatible, Set of 3).

$109.00

Power, control, and drive — the GM2 4.75" thruster set delivers reliable performance across a wide range of conditions.

GM is our internal template code for a General Medium performance thruster, balancing drive, pivot, and release

Power, control, and drive — the GM2 4.75" thruster set delivers reliable performance across a wide range of conditions.

GM is our internal template code for a General Medium performance thruster, balancing drive, pivot, and release

FCS compatible grub screws. FCS compatible grub screws. FCS compatible grub screws. FCS compatible grub screws. FCS compatible grub screws. FCS compatible grub screws. FCS compatible grub screws. FCS compatible grub screws.
FCS compatible grub screws.
from $2.70
Number of grub screws.:

FCS compatible. Side fins Depth 4.75 Base 4.75" Foil flat inside face, Center fin Depth 4.5” Base 4.7” Foil 50/50

The 4.75" GM2 Thruster Fins are a proven all-round fin set designed to balance drive, speed, and control for everyday shortboard surfing. Featuring the well-known AM2 template, these fins provide a solid base for powerful turns while maintaining smooth release through transitions.

Constructed from durable black Pro Glass, this set offers a consistent, medium flex pattern that delivers predictability and control without feeling overly stiff. The slightly larger size suits surfers who want added hold and confidence, especially when pushing harder through turns or surfing with more power.

Compatible with FCS fin systems, these fins are an ideal choice for surfers seeking a dependable thruster setup that performs in everything from punchy beach breaks to clean point waves.

Key Features

  • Fin Type: Thruster fins

  • Size: 4.75"

  • Template: GM2 (drive-focused, all-round performance)

  • Construction: Black Pro Glass (fiberglass)

  • Flex Pattern: Medium, predictable, and responsive

  • Compatibility: FCS compatible

  • Set Includes: 3 fins (2 side fins + 1 center fin)

Ideal For

  • Shortboards and performance hybrids

  • Surfers seeking drive and control

  • Small to overhead surf conditions

  • Beach breaks, reefs, and point waves

Why Choose the 4.75" AM2 Thruster Fins?

  • Proven GM2 template trusted worldwide

  • Strong drive with controlled release

  • Durable Pro Glass construction for longevity

  • Versatile performance across a wide range of waves

FAQs

Who are these fins best suited for?
The 4.75" GM2 fins suit intermediate to advanced surfers who want reliable drive and control in a thruster setup.

Are these fins good for everyday conditions?
Yes. Their balanced template makes them ideal as an everyday fin set across varied wave types.

Will these fit my board?
Yes. These fins are compatible with standard FCS fin boxes.

We include

Free Delivery: Everywhere in Australia.

Tracking: Quick & easy online tracking on all fins. 

Peace of Mind: All 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 just $10 per order.