Complete Surfboard Fin Buyer’s Guide
Choosing the right surfboard fins can completely change how your board performs.
The right fins improve:
Speed
Control
Turning
Stability
The wrong fins can make a board feel slow, stiff, or unpredictable.
This Complete Surfboard Fin Buyer’s Guide explains everything you need to know to choose the right fins for your board and surfing style.
What Surfboard Fins Do
Surfboard fins control how your board moves through the water.
They:
Provide stability
Hold the rail through turns
Generate drive
Control release
Without fins, a surfboard would slide sideways across the wave.
Fins help convert wave energy into forward speed.
Step 1 — Make Sure the Fins Fit Your Board
Before choosing fins, confirm your fin system.
Most boards use:
FCS / FCSII
Futures
Center sliding fin box
Fins must match your board’s fin system.
For a detailed explanation see:
Surfboard Fin Compatibility Explained
Step 2 — Choose the Right Fin Setup
The fin setup has the biggest impact on performance.
Thruster Setup (Three Fins)
Thrusters provide:
Reliable control
Balanced performance
Predictable turning
This is the most common setup.
Dependable examples: 4.5" Progressive Thruster Fins – Black Pro Glass | FCSII Compatible Set and the
4.75" Performance Thruster Fins – Pro Glass, designed for balanced speed and control.
Thrusters suit:
Most surfers
Most boards
Most waves
Quad Setup (Four Fins)
Quads provide:
More speed
Less drag
Smooth projection
They suit:
Fast waves
Down-the-line surfing
Twin Fin Setup
Twin fins provide:
Fast speed
Loose feel
Smooth flow
They suit:
Small waves
Fish boards
Mid-length boards
A dependable example is the 5.7" Upright Twin Fins – Pro Glass, designed for speed and responsiveness.
Single Fin Setup
Single fins provide:
Smooth trim
Stable control
Flowing turns
They suit:
Longboards
Mid-length boards
A classic example is the 10" International 4A Center Fin – Volan Pro Glass, designed for smooth trim and dependable hold.
Step 3 — Choose the Right Fin Size
Fin size strongly affects performance.
Larger Fins Provide
More hold
Greater stability
Better control
Best for:
Larger surfers
Powerful waves
Smaller Fins Provide
Faster release
Quicker turning
Looser feel
Best for:
Lighter surfers
Small waves
For detailed sizing guidance see:
Step 4 — Choose the Right Fin Shape
Fin shape influences speed and turning style.
Raked Fins
Provide:
Strong drive
Smooth projection
Longer turns
Best for:
Open faces
Powerful waves
Upright Fins
Provide:
Quicker turning
Fast release
Loose feel
Best for:
Small waves
Beach breaks
Step 5 — Choose the Right Fin Material
Material affects performance feel.
Pro Glass (Fiberglass)
Pro Glass fins provide:
Reliable drive
Predictable control
Long-term durability
Many experienced surfers prefer fiberglass fins.
A dependable fiberglass thruster example is the 4.75" Performance Thruster Fins – Pro Glass, designed for real surf conditions.
Lightweight Composite Fins
Provide:
Lighter weight
More flex
Softer feel
They often feel less direct than fiberglass fins.
Step 6 — Consider Wave Conditions
Wave type influences fin choice.
Small Waves
Often benefit from:
Upright fins
Smaller fins
Faster release
Powerful Waves
Often benefit from:
Raked fins
Larger fins
Strong drive
Step 7 — Consider Your Surfing Style
Fin choice depends on how you surf.
Flowing Style
Usually suits:
Raked fins
Larger fins
Vertical Style
Usually suits:
Upright fins
Smaller fins
Recommended Everyday Fin Choices
These fins suit most surfers and conditions.
Balanced Thruster Setup
• 4.75" Performance Thruster Fins – Pro Glass
Balanced speed and control for everyday surfing.
Fast Twin Setup
• 5.7" Upright Twin Fins – Pro Glass
Speed and responsiveness.
Classic Longboard Setup
• 10" International 4A Center Fin – Volan Pro Glass
Smooth trim and dependable hold.
Common Fin Buying Mistakes
Choosing Fins That Don't Fit
Always confirm fin compatibility first.
Choosing the Wrong Size
Incorrect size can reduce performance.
Ignoring Fin Setup
Fin setup affects performance more than small design differences.
Buying Extremely Flexible Fins
Very flexible fins often feel less predictable.
Common Questions About Surfboard Fins
Do fins really make a difference?
Yes.
Fins strongly influence speed, turning and control.
What is the best fin setup?
Thrusters work best for most surfers.
Are fiberglass fins better?
Many surfers prefer fiberglass because they provide reliable drive and predictable control.
Should beginners use thrusters?
Yes.
Thrusters provide the best balance of stability and turning.
The Bottom Line
Choosing the right fins makes a major difference to how your surfboard performs.
Start by:
Matching the fin system
Choosing the right setup
Selecting the correct size
Picking the right shape
The right fins make surfing easier, faster and more predictable.