4.7" / 4.25" Controller Split Keel Quad Fins – Solid Black Pro Glass | FCS Compatible (4 Fins)

Maximum drive and down-the-line speed from a controller-style split-keel quad template, built in durable solid black Pro Glass for powerful hold and smooth release.

The 4.7" / 4.25" Controller Split Keel Quad Fin set is designed for surfers seeking strong projection, extended rail hold, and fast acceleration in modern quad surfboards. The split-keel inspired front fins generate substantial drive and stability, while the slightly reduced rear fins maintain manoeuvrability and controlled release through turns.

Constructed from solid black Pro Glass fibreglass, these fins provide consistent flex behaviour, structural strength, and long-term durability suited to regular surfing. The larger surface area and drawn-out template support confident performance in powerful waves while still maintaining responsiveness in everyday conditions.

This quad configuration is produced for compatibility with FCS-style dual-tab fin box systems and is supplied as a complete four-fin set ready for installation.

Key Features

• Quad fin configuration with two front fins and two rear fins

• 4.7" controller-style split-keel fronts paired with 4.25" rears

• Solid black Pro Glass fibreglass construction for strength and durability

• Designed for maximum drive, projection, and rail hold

• Controlled release for smooth transitions between turns

• FCS-compatible dual-tab fin bases

• Suitable for performance quads, hybrids, and step-up style boards

Ideal For

• Fast quad surfboards requiring strong down-the-line speed

• Powerful waves where hold and projection are critical

• Hybrid and performance shapes needing added drive

• Surfers who prefer drawn-out, controlled turning response

Choose Controller Split Keel Quad Fins

• High-drive controller template for speed and stability

• Durable Pro Glass construction for long service life

• Balanced rear fin sizing for manoeuvrability

• Reliable performance across a wide range of conditions

• Complete ready-to-install four-fin quad set

Compatibility

Fits FCS fin system.

FCS™ and FCSII™ 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 to FCS and FCSII are for descriptive purposes only.