4.7" / 4.25" Controller Split Keel Quad Fins – FCS compatible solid black Pro Glass (4 Fins)

High-drive controller split keel quad fins for fast acceleration, powerful rail hold and smooth, controlled turns.

These controller split keel quad fins combine the drive of a keel-style template with the control and manoeuvrability of a four-fin setup.

• Choose these surfboard fins for: Speed, projection, stability and strong rail hold

• Best suited to: Quad surfboards, hybrids, performance fish and step-up shapes

• Wave conditions: Everyday surf through to faster, more powerful waves

• Surfing feel: Fast and planted with smooth, drawn-out turns

• Fin construction: Solid black Pro Glass fibreglass

• Fin system: FCS-compatible dual-tab fin boxes

• Set supplied: Two 4.7-inch front fins and two 4.25-inch rear fins

The broad controller-style front fins create powerful drive and fast down-the-line acceleration. The smaller rear quad fins add hold while allowing the board to release smoothly through turns.

Solid Pro Glass construction provides a firm, predictable flex pattern for surfers who want positive feedback and dependable control. These Eveley fins are particularly effective in boards that need more projection without losing manoeuvrability.

Technical Specs

• Fin type: Controller split keel quad set

• Configuration: Four fins—two front fins and two rear fins

• Front-fin depth: 4.7 inches

• Front-fin base: 5.25 inches

• Front-fin foil: Flat inner face

• Rear-fin depth: 4.25 inches

• Rear-fin base: 3.8 inches

• Rear-fin foil: Flat inner face

• Material: Solid Pro Glass fibreglass

• Colour: Solid black

• Fin system: FCS-compatible dual-tab system

• Performance: Strong drive, fast acceleration, rail hold and controlled release

• Recommended boards: Quad surfboards, hybrids, performance fish and step-up boards

• Included: Complete set of four fins

• Dispatch: Stock held and dispatched from Sydney

• Australian delivery: Free tracked delivery with transit insurance

• Express delivery: Available for $10 per order

• Returns: 30-day returns on unused, full-price items

Compatibility note: Check that your surfboard uses an FCS-compatible dual-tab fin system before ordering.

FCS™ and FCS II™ are registered trademarks of Surf Hardware International Pty Ltd. Eveley Surf is not affiliated with or endorsed by Surf Hardware International Pty Ltd. All compatibility references are provided for descriptive purposes only.

Eveley Surfboard Fin Knowledge Hub

Learn more about choosing, fitting and understanding quad surfboard fins:

• Controller Split Keel Quad Fins Guide—Speed, Hold and Rail Drive

• Quad Fin Setup Guide—Speed, Hold and When to Ride a Quad

• Quad Fin Placement and Performance Explained

• What Is Pro Glass and Why Do Surfers Prefer It?

• Surfboard Fin Compatibility Explained

• Surfboard Fins Australia—Complete Buyer’s Guide