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FCS compatible. Depth 4.5” Base 6.75” Foil: flat inner face.
With 4.5" of depth and a 6.75” base these fins will provide significant drive while the template shape allows for speed and power down the line. Made from natural colour fiberglass with a timber core and gloss finish, which provides a rigid flex for the serious surfer.
Timber Core keel fins have a few standout qualities that make them popular with fish-riders and anyone chasing that smooth, classic feel:
1. Natural flex pattern (the big one)
Wood has a progressive, dampened flex that fiberglass alone doesn’t replicate.
Stiffer at the base → drive and hold
Softer toward the tip → smoother release and flow
This gives keels a buttery, connected feeling that works perfectly with twin-fin fishes.
2. Perfect mix of weight and mass = more hold and glide
A timber core adds a little extra mass compared to pure fiberglass.
This helps:
Keep the tail settled at high speed
Smooth out chatter in bumpy water
Make rail-to-rail transitions feel more controlled
3. Rigidity where it counts
Timber core fins are glassed with fiberglass and resin skins.
That gives:
A stiff base for drive
Enough tip flex without being floppy
Essentially the “best of both worlds” between glass-ons and modern composite fins.
4. A different hydrodynamic feel
Timber has small-scale grain variations.
This can create:
A subtle reduction in turbulence
A slightly more frictionless sensation at speed
Surfers often describe this as “cleaner water flow” or “less draggy.”
5. Durability
Timber cores are:
Tougher than foam-core fins
Less prone to sudden catastrophic snapping
Easy to sand and repair if you ding them
6. Aesthetic appeal
Let’s be honest—timber keels look unreal.
They pair perfectly with retro boards and add a craft-built feel to the setup.
7. Excellent for wide-tailed boards
Timber keels perform especially well on:
Traditional fish (retro and modern)
Mini-simmons
Hybrid twins
The flex + weight + drive synergy suits fast, down-the-line surfing with long drawn-out turns.
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.
