Power-focused quad control for larger surfers and high-drive boards. Black Pro Glass construction delivers strong hold, clean release, and dependable durability across fast, committed surfing.
The 5.2" / 4.35" Big Boy Quad Fin set in black Pro Glass is engineered for surfers requiring increased surface area, drive, and control from a quad configuration. The larger front fins generate strong projection and rail engagement, while the balanced rear fins provide controlled release and smooth transition through turns.
Constructed from laminated Pro Glass fibreglass, this quad set emphasises structural strength, consistent flex behaviour, and long-term durability under higher loads. The template is suited to step-up shortboards, performance hybrids, and wider grovellers ridden by heavier or more powerful surfers who need reliable hold without sacrificing speed.
This is a precision-built quad fin system designed to maintain stability and projection in demanding surf conditions.
This quad set emulates the original HI-1 quads, but made from superior Pro Glass for the serious surfer.
Specs
Front fins Depth 5.2” Base 5” Rear fins Depth 4.35” Base 4.35” Foil flat inner face on all fins.
Key features
Large-area Big Boy quad template for increased drive and hold
5.2" front fins paired with 4.35" rear stabilisers
Black laminated Pro Glass fibreglass construction
Strong projection with controlled release through turns
Consistent flex pattern suited to powerful surfing
Durable build for long service life in heavy use
Ideal for
Larger or more powerful surfers
Step-up shortboards and performance hybrids
Fast waves requiring projection and rail hold
Riders preferring quad speed with dependable control
Choose Big Boy Quad Fins
This quad set provides enhanced surface area and projection while preserving the predictable flex and durability of Pro Glass construction. It is designed for surfers who demand speed, hold, and stability under load, making it a reliable performance option for heavier riders and more powerful conditions.
Compatibility
Compatible with FCS fin box systems.
Summary
Large-template 5.2" front and 4.35" rear quad fins in black Pro Glass for FCS-compatible surfboards. Designed to deliver strong drive, controlled release, and durable high-load performance for powerful surfers, step-up boards, and fast wave conditions.
Power-focused quad control for larger surfers and high-drive boards. Black Pro Glass construction delivers strong hold, clean release, and dependable durability across fast, committed surfing.
The 5.2" / 4.35" Big Boy Quad Fin set in black Pro Glass is engineered for surfers requiring increased surface area, drive, and control from a quad configuration. The larger front fins generate strong projection and rail engagement, while the balanced rear fins provide controlled release and smooth transition through turns.
Constructed from laminated Pro Glass fibreglass, this quad set emphasises structural strength, consistent flex behaviour, and long-term durability under higher loads. The template is suited to step-up shortboards, performance hybrids, and wider grovellers ridden by heavier or more powerful surfers who need reliable hold without sacrificing speed.
This is a precision-built quad fin system designed to maintain stability and projection in demanding surf conditions.
This quad set emulates the original HI-1 quads, but made from superior Pro Glass for the serious surfer.
Specs
Front fins Depth 5.2” Base 5” Rear fins Depth 4.35” Base 4.35” Foil flat inner face on all fins.
Key features
Large-area Big Boy quad template for increased drive and hold
5.2" front fins paired with 4.35" rear stabilisers
Black laminated Pro Glass fibreglass construction
Strong projection with controlled release through turns
Consistent flex pattern suited to powerful surfing
Durable build for long service life in heavy use
Ideal for
Larger or more powerful surfers
Step-up shortboards and performance hybrids
Fast waves requiring projection and rail hold
Riders preferring quad speed with dependable control
Choose Big Boy Quad Fins
This quad set provides enhanced surface area and projection while preserving the predictable flex and durability of Pro Glass construction. It is designed for surfers who demand speed, hold, and stability under load, making it a reliable performance option for heavier riders and more powerful conditions.
Compatibility
Compatible with FCS fin box systems.
Summary
Large-template 5.2" front and 4.35" rear quad fins in black Pro Glass for FCS-compatible surfboards. Designed to deliver strong drive, controlled release, and durable high-load performance for powerful surfers, step-up boards, and fast wave conditions.
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