4.7" / 4.25" Controller Split Keel Quad Fins – Natural Pro Glass Futures Compatible | Set of Four (4) Surfboard Fins

Futures compatible. Front fins Depth 4.7” Base 5.25” Foil flat inner face Tab 3/4” Rear fins Depth 4.25” Base 3.8” Foil flat inner face Tab 1/2”

The Controller Split Keel Quad Fin Set blends the raw drive of a traditional keel with the control and release of a modern quad setup. Designed for wide-tailed boards, fish, hybrids, and performance mid-lengths, this split keel layout delivers explosive down-the-line speed while maintaining smooth, predictable transitions through turns.

Constructed from natural Pro Glass fiberglass, these fins provide a balanced flex pattern that loads and releases energy naturally, ideal for surfers who value flow, projection, and hold without stiffness.

Fully Futures compatible, this is a set of four fins featuring larger front keels (4.7") paired with slightly smaller rear stabilisers (4.25") for speed with control.

🔧 Key Features

• Split Keel Quad Design – Classic keel drive with added quad stability

• 4.7" Front + 4.25" Rear – Optimised size pairing for speed and control

• Natural Pro Glass Fiberglass – Smooth flex, durable, and responsive

• Wide Base Templates – Maximum projection and down-the-line speed

• Futures Compatible – Fits all Futures fin boxes

• Set of Four Fins – Quad configuration

🧠 Ideal For

• Fish, twin + quad versions, hybrids, and wide-tailed boards

• Small to medium surf where speed generation matters

• Surfers who want keel-style drive without the locked-in feel

• Clean rail surfing with smooth, drawn-out turns

⭐ Why Choose the Controller Split Keel Quad?

Unlike standard quad templates, the Controller Split Keel setup emphasises base width and rail engagement, giving you instant acceleration while maintaining control through critical sections. The reduced rear fin size adds release without sacrificing hold, making this set ideal for modern boards that still crave classic feel.

Natural Pro Glass construction delivers a familiar, lively flex that works across a wide range of conditions — from playful beach breaks to lined-up point waves.

📐 Fin Specifications

• Configuration: Quad (Split Keel)

• Front Fins: 4.7"

• Rear Fins: 4.25"

• Material: Natural Pro Glass Fiberglass

• Compatibility: Futures fin boxes

• Set: 4 fins

❓ FAQs

Will these fins fit my board?
Yes. These fins are Futures compatible and will fit any surfboard with Futures fin boxes.

What boards work best with split keel quads?
They are ideal for fish, hybrids, and wider tail shapes where speed, flow, and drive are priorities.

How do these compare to standard quad fins?
Split keels provide more drive and smoother rail engagement, while the smaller rear fins maintain control and release.

Are these suitable for small waves?
Absolutely. The wide base and keel influence make them excellent for generating speed in weaker 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.

Enjoy faster Express Shipping for $10 per order at the checkout.