4.5" Classic Center Fin – Strong Blue Pro Glass

Compact single-fin stability for controlled trim and smooth turning.
Durable Pro Glass construction with a classic outline suited to smaller boards, 2+1 configurations, and precision center-fin use.

The 4.5" Classic Center Fin is designed to provide reliable directional control and smooth turning response in boards requiring a smaller center fin. The traditional outline supports stable trim while maintaining the ability to pivot cleanly during manoeuvres.

Constructed from solid Pro Glass fibreglass, the fin delivers consistent flex behaviour and long-term durability under regular surfing conditions. The compact 4.5-inch depth makes it particularly suited to shorter boards, performance mid-lengths, and 2+1 fin arrangements where reduced drag and responsive control are required.

The fin installs into a standard sliding center fin box, allowing precise adjustment to fine-tune hold, looseness, and turning radius.

Key features

• 4.5" classic center-fin template for balanced control

• Strong blue solid Pro Glass fibreglass construction

• Predictable flex for smooth turning response

• Compact depth reduces drag in smaller boards

• Adjustable positioning within sliding center fin box

• Durable build for repeated everyday use

Ideal for

• 2+1 surfboard configurations

• Performance mid-length boards

• Shorter single-fin boards requiring reduced depth

• Surfers seeking controlled trim with easy pivot

• Small-to-medium surf conditions

Why choose this product

• Compact size supports responsive manoeuvrability

• Traditional template suits a wide range of board designs

• Solid fibreglass construction improves longevity

• Adjustable placement enables performance tuning

• Neutral flex profile maintains predictable handling

Compatibility

Designed for use with a sliding center fin box.
Not compatible with FCS or Futures plug systems.

Frequently Asked Questions

What type of board is a 4.5" center fin best suited to?
It is commonly used in 2+1 setups, shorter single-fin boards, and performance mid-lengths where reduced fin depth improves manoeuvrability.

Can the fin position be adjusted?
Yes. The sliding center fin box allows forward or rearward placement to fine-tune stability and turning response.

Is this fin suitable as a single fin?
Yes. It can be used alone in boards designed for smaller single fins or combined with side fins in a 2+1 configuration.

Summary

Compact 4.5-inch classic center surfboard fin made from strong blue Pro Glass fibreglass for controlled trim, smooth turning, and adjustable performance. Designed for 2+1 setups and smaller single-fin boards using a sliding center fin box.