Image 1 of 2
Image 2 of 2
FCSII compatible. Side fins Depth 4.5 Base 4.4" Foil flat inside face, Center fin Depth 4.5” Base 4.4” Foil 50/50
The 4.5" DSP Thruster Fins are designed for surfers who want maximum drive, speed, and precision in a performance thruster setup. Inspired by modern power surfing, this fin template delivers strong base drive with a refined tip for fast release through turns.
Built using carbon fiber TekFlex, these fins combine lightweight stiffness with controlled flex. The carbon construction enhances energy transfer and snap, while the TekFlex layup maintains responsiveness without feeling overly rigid. The result is a fin that accelerates quickly, holds confidently through committed turns, and releases cleanly when pushed hard.
Fully FCS II compatible, this set allows for quick, tool-less installation and secure performance across a wide range of high-performance shortboards.
Key Features & Benefits
4.5" DSP thruster template – Balanced drive, control, and release
Carbon fiber TekFlex construction – Lightweight, fast, and responsive
High-speed performance – Excellent projection through powerful turns
Controlled flex pattern – Snap without loss of stability
FCS II compatible – Tool-less installation in FCS II fin boxes
Set of three fins – Complete thruster configuration
Fin Use Guide
Best for: Performance shortboards
Fin setup: Thruster (3-fin)
Wave types: Beach breaks, reefs, punchy conditions
Surf style: Power surfing, fast rail-to-rail transitions
Skill level: Intermediate to advanced
FAQ’s
What type of surfer are the 4.5" DSP Thruster Fins best for?
These fins are best suited to intermediate to advanced surfers who generate speed and surf with power. The DSP template is designed for strong drive, fast rail-to-rail transitions, and committed turns on performance shortboards.
How does carbon fiber TekFlex affect performance?
Carbon fiber TekFlex provides a lighter, stiffer base with controlled flex through the tip. This improves acceleration, snap, and energy return compared to standard fiberglass, while still maintaining control at high speed.
Are these fins compatible with my surfboard?
Yes. These fins are FCS II compatible and fit surfboards with FCS II fin boxes. They install using the FCS II tool-less system and do not require screws or tools.
What wave conditions do these fins perform best in?
The 4.5" DSP Thruster Fins perform best in waist-high to overhead waves, especially in punchy beach breaks and reefs where speed generation and control through turns are critical.
How many fins are included in the set?
This product includes a set of three fins, providing a complete thruster setup for performance surfing.
Can these fins be used by lighter or less powerful surfers?
Lighter or less aggressive surfers can still use these fins, but they may prefer a more flexible RTM hex construction if they want a looser, more forgiving feel at lower speeds.
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 just $10 per order at checkout.