4.6" Twin Keels – Random Yellow, Green and Red Pattern Pro Glass | Futures Compatible (Set of Two)

Futures compatible Depth 4.6” Base 6.2” Foil: flat inner face Tab: 3/4”

The 4.6" Twin Keels in random yellow, green and red pattern Pro Glass are a matched pair of large-base twin fins intended for traditional twin-fin surfboards and modern retro fish outlines.
The keel template emphasizes surface area and rake to support sustained down-the-line speed, stable hold, and predictable carving through extended turns.

Each fin features a unique random colour pattern within the Pro Glass fiberglass layup, meaning appearance will vary between sets while maintaining identical structural performance.
The Futures-compatible base provides secure installation in standard Futures side fin boxes.

Key Features

• 4.6" twin keel template with extended base for projection and glide

• Random yellow, green and red pattern within Pro Glass fiberglass construction

• Consistent flex suited to smooth carving rather than abrupt release

• Stable hold for retro fish and traditional twin-fin boards

• Futures-compatible base

• Supplied as a matched set of two fins

Ideal For

• Retro fish and classic twin-fin surfboards

• Small to medium clean surf conditions

• Surfers seeking trim speed, glide, and drawn-out turning arcs

• Riders preferring rail engagement and flow over tight pivot response

Why Choose This Product

This twin keel configuration is designed to maximize continuous speed and predictable control.
The Pro Glass construction provides reliable flex behaviour, while the extended keel outline enhances glide and stability through flowing turns.
The random colour pattern offers visual variation without affecting structural consistency or performance.

Compatibility

• Designed for Futures side fin boxes

• Not compatible with FCS or FCS II systems

• No center fin required for standard twin-fin configurations

Frequently Asked Questions

Will the colour pattern be identical to the product image?
No. Each fin set uses a random yellow, green and red pattern, so appearance will vary while performance and construction remain consistent.

Are these suitable for all twin-fin surfboards?
They are intended for surfboards designed for twin-fin use and fitted with Futures side fin boxes. Board size and outline will influence overall feel.

How do keel twins differ from upright twin fins?
Keel twins have more base length and rake, producing greater speed, hold, and drawn-out turns, while upright twins allow tighter pivot and quicker release.

Summary

4.6-inch twin keel surfboard fins in random yellow, green and red pattern Pro Glass, supplied as a Futures-compatible pair.
Large base and raked template deliver speed, hold, and smooth carving for retro fish and traditional twin-fin boards in small to medium clean surf.

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 for just $10 per order at the checkout.