Image 1 of 5
Image 4 of 5
Image 5 of 5
4.5" Extra Long Twin Keel Surfboard Fins – Timber Core Pro Glass | FCS Compatible Twin Fin Set for Maximum Speed & Classic Drive
Premium surfboard fins designed for twin fin speed, flow, and smooth rail drive.
If you ride twin fin boards and want maximum speed and flowing turns, these surfboard fins are designed for exactly that.
These fins suit:
Fish surfboards
Retro twin designs
Twin mid-lengths
Hybrid twin setups
Riders choose keel-style surfboard fins when they want:
Fast down-the-line speed
Long carving turns
Drive through flatter sections
Smooth flowing rail transitions
Classic twin fin speed meets premium construction.
The Eveley 4.5" Extra Long Twin Keel Surfboard Fins combine a traditional keel template with modern Timber Core Pro Glass construction to produce powerful drive and exceptional flow.
The extended base creates the kind of down-the-line speed that made twin fins famous, while the long sweeping outline delivers smooth carving control without feeling stiff.
If your twin fin feels loose or skaty, these fins add the drive and hold that transforms the board.
✔ Extra-long keel base for speed and drive
✔ Timber Core Pro Glass for strength and smooth flex
✔ Classic twin keel template for flowing rail surfing
✔ FCS compatible tabs for quick installation
Designed for surfers who want their twin fin boards to feel fast, powerful and beautifully smooth through turns.
These surfboard fins fit:
FCS dual-tab fin boxes
They install using the standard two-tab FCS system, making them compatible with thousands of boards worldwide.
These fins work best with boards designed around twin fin speed and flow.
If your twin board feels too loose or lacks drive, larger keel-style surfboard fins like these typically solve the problem.
Specs
Fin Type: Twin keel surfboard fins
Depth (Height) 4.5” Base 6.75” Foil: flat inner face. Area ≈ 26.0 in² Aspect Ratio ≈ 0.78 Sweep ≈ 41°
Construction: Timber Core with Pro Glass laminate
Finish: Gloss
Flex Pattern: Smooth progressive flex
Base Length: Extended keel base for maximum drive
Compatibility: FCS dual-tab fin system
Set: Two fins (left and right)
Choose 4.5" Extra Long Twin Keel Surfboard Fins
Surfers choose these Eveley surfboard fins because they deliver the core advantages that made twin fins legendary.
Maximum Speed
The long keel base generates exceptional down-the-line speed.
Smooth Rail Flow
The sweeping outline promotes long, flowing turns rather than abrupt pivots.
Drive Through Flat Sections
Perfect for small to medium waves where maintaining speed matters.
Premium Construction
Timber Core Pro Glass combines the natural damping of wood with the strength of fiberglass.
Classic Twin Feel
Loose enough to feel alive, but with enough hold to stay controlled.
These are surfboard fins built for surfers who love the classic twin keel experience.
Surfboard Fin Knowledge Hub
Choosing the right surfboard fins can completely transform how your board performs.
If you want to better understand fin setups, sizing, templates and compatibility, explore the Eveley knowledge hub.
Start here:
Surfboard Fins Australia – Complete Buyer’s Guide
Your full guide to fin types, sizing and compatibility.
Additional useful guides:
Twin Keel Surfboard Fins – The Complete Guide to Speed, Drive & Classic FlowLearn how twin keel surfboard fins work, why they generate incredible speed, and how to choose the right keel fins for fish boards and twin fin setups.
Twin Fin Surfing Guide Australia — Speed, Flow, and Modern ControlDiscover why twin fins are so fast. This guide explains keel twins, upright performance twins, and how twin setups change speed, turning and control.
Twin Surfboard Fins – Speed, Flow & Retro Performance ExplainedLearn how twin surfboard fins work, why they generate incredible speed, and which boards they suit best. Complete guide to twin fin performance, sizing and setup.
Surfboard Fin Materials – Fiberglass vs HoneycombFiberglass vs honeycomb surfboard fins explained. Discover the real performance differences in drive, hold, flex and speed to choose the right fin construction.
Advanced Surfboard Fin Buyer’s Guide – Performance, Templates & MaterialsComplete surfboard fin buyer’s guide explaining fin setups, sizes and materials. Learn how to choose the right fins for speed, control and performance.
Learning how different surfboard fins influence speed, hold and turning will help you unlock the best performance from every board you ride.
FAQs
Are these surfboard fins suitable for fish boards?
Yes. Keel fins are traditionally designed for fish surfboards and work exceptionally well with wider tails and flatter rocker.
Do these fins fit FCS II boxes?
They are designed for FCS dual-tab systems and install using the standard grub screw method.
What waves are twin keel fins best for?
They perform best in small to medium waves where maintaining speed and flow is important.
Will keel fins make my board faster?
Yes. The extended base length generates strong down-the-line drive, which is why keel fins are known for speed.
Are timber core fins durable?
Absolutely. Timber Core Pro Glass construction combines fiberglass strength with the smooth flex characteristics of wood.
Premium surfboard fins designed for twin fin speed, flow, and smooth rail drive.
If you ride twin fin boards and want maximum speed and flowing turns, these surfboard fins are designed for exactly that.
These fins suit:
Fish surfboards
Retro twin designs
Twin mid-lengths
Hybrid twin setups
Riders choose keel-style surfboard fins when they want:
Fast down-the-line speed
Long carving turns
Drive through flatter sections
Smooth flowing rail transitions
Classic twin fin speed meets premium construction.
The Eveley 4.5" Extra Long Twin Keel Surfboard Fins combine a traditional keel template with modern Timber Core Pro Glass construction to produce powerful drive and exceptional flow.
The extended base creates the kind of down-the-line speed that made twin fins famous, while the long sweeping outline delivers smooth carving control without feeling stiff.
If your twin fin feels loose or skaty, these fins add the drive and hold that transforms the board.
✔ Extra-long keel base for speed and drive
✔ Timber Core Pro Glass for strength and smooth flex
✔ Classic twin keel template for flowing rail surfing
✔ FCS compatible tabs for quick installation
Designed for surfers who want their twin fin boards to feel fast, powerful and beautifully smooth through turns.
These surfboard fins fit:
FCS dual-tab fin boxes
They install using the standard two-tab FCS system, making them compatible with thousands of boards worldwide.
These fins work best with boards designed around twin fin speed and flow.
If your twin board feels too loose or lacks drive, larger keel-style surfboard fins like these typically solve the problem.
Specs
Fin Type: Twin keel surfboard fins
Depth (Height) 4.5” Base 6.75” Foil: flat inner face. Area ≈ 26.0 in² Aspect Ratio ≈ 0.78 Sweep ≈ 41°
Construction: Timber Core with Pro Glass laminate
Finish: Gloss
Flex Pattern: Smooth progressive flex
Base Length: Extended keel base for maximum drive
Compatibility: FCS dual-tab fin system
Set: Two fins (left and right)
Choose 4.5" Extra Long Twin Keel Surfboard Fins
Surfers choose these Eveley surfboard fins because they deliver the core advantages that made twin fins legendary.
Maximum Speed
The long keel base generates exceptional down-the-line speed.
Smooth Rail Flow
The sweeping outline promotes long, flowing turns rather than abrupt pivots.
Drive Through Flat Sections
Perfect for small to medium waves where maintaining speed matters.
Premium Construction
Timber Core Pro Glass combines the natural damping of wood with the strength of fiberglass.
Classic Twin Feel
Loose enough to feel alive, but with enough hold to stay controlled.
These are surfboard fins built for surfers who love the classic twin keel experience.
Surfboard Fin Knowledge Hub
Choosing the right surfboard fins can completely transform how your board performs.
If you want to better understand fin setups, sizing, templates and compatibility, explore the Eveley knowledge hub.
Start here:
Surfboard Fins Australia – Complete Buyer’s Guide
Your full guide to fin types, sizing and compatibility.
Additional useful guides:
Twin Keel Surfboard Fins – The Complete Guide to Speed, Drive & Classic FlowLearn how twin keel surfboard fins work, why they generate incredible speed, and how to choose the right keel fins for fish boards and twin fin setups.
Twin Fin Surfing Guide Australia — Speed, Flow, and Modern ControlDiscover why twin fins are so fast. This guide explains keel twins, upright performance twins, and how twin setups change speed, turning and control.
Twin Surfboard Fins – Speed, Flow & Retro Performance ExplainedLearn how twin surfboard fins work, why they generate incredible speed, and which boards they suit best. Complete guide to twin fin performance, sizing and setup.
Surfboard Fin Materials – Fiberglass vs HoneycombFiberglass vs honeycomb surfboard fins explained. Discover the real performance differences in drive, hold, flex and speed to choose the right fin construction.
Advanced Surfboard Fin Buyer’s Guide – Performance, Templates & MaterialsComplete surfboard fin buyer’s guide explaining fin setups, sizes and materials. Learn how to choose the right fins for speed, control and performance.
Learning how different surfboard fins influence speed, hold and turning will help you unlock the best performance from every board you ride.
FAQs
Are these surfboard fins suitable for fish boards?
Yes. Keel fins are traditionally designed for fish surfboards and work exceptionally well with wider tails and flatter rocker.
Do these fins fit FCS II boxes?
They are designed for FCS dual-tab systems and install using the standard grub screw method.
What waves are twin keel fins best for?
They perform best in small to medium waves where maintaining speed and flow is important.
Will keel fins make my board faster?
Yes. The extended base length generates strong down-the-line drive, which is why keel fins are known for speed.
Are timber core fins durable?
Absolutely. Timber Core Pro Glass construction combines fiberglass strength with the smooth flex characteristics of wood.
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: forjust $10 per order at checkout.