Deflow Bonzer Single Fin
Model: Deflow Bonzer
Construction: Fiberglass
Fin set: Single Fin
Fin base: Longboard
Curiosity has a way of taking us to unexpected places, right? One of the most fascinating innovations in surfboard design, the Bonzer, owes its existence to the curiosity of the Campbell Brothers.
The core idea behind the Bonzer system is to optimize water flow efficiency. By designing a unique combination of fins and bottom contours that work in perfect synergy, the system maximizes the energy generated as water passes through the tail of the board, creating a faster, more responsive ride.
This particular fin is crafted to work seamlessly with any Bonzer surfboard, enhancing its performance and giving you the perfect balance of speed and control.
Thanks for staying curious.
Features
- Flex: Little
- Construction: Fibreglass
What is the history behind a Bonzer fin?
The Bonzer is a revolutionary surfboard design created by the Campbell Brothers—Malcolm and Dale—who were surfers and innovators from Santa Barbara, California. In the 1970s, driven by curiosity and a passion for hydrodynamics, they developed the Bonzer, a surfboard with a unique three-fin setup (one larger center fin and two smaller side fins) and a V-shaped concave bottom. This design was engineered to optimize water flow, providing more speed, stability, and control by allowing water to move efficiently through the tail of the board.
Though initially not widely adopted, the Bonzer gained a following for its ability to deliver a smooth, fast ride, particularly in hollow waves. Over the years, it has influenced modern surfboard design and is still respected today for its performance and innovative approach to surfboard hydrodynamics.
What is it like surfing a single fin?
Riding a single fin is an experience that feels smooth, fluid, and grounded, with a deep connection to the rhythm of the wave. It's a style of surfing that prioritizes flow, style, and nostalgia, taking you back to the roots of surfing where things were simpler and more about enjoying the ride than performing technical maneuvers.
This doesn't mean that if the board or the conditions requires it you can't add some side bites. We have designed a set of side bites to help you surf with more control.
A quick note about our photos!
We use a mix of official brand images and real-life shots from our warehouse to help you make an informed decision.
That said, what you see might differ slightly from what you receive — simply because we can't photograph every possible variation.
For example, a photo might show a 6'2 board with Futures fin boxes, while you've selected a 5'10 with FCS II. Don’t worry — you’ll get exactly what you ordered.
Sometimes, small details like the logo, its placement or overall colour tones can vary slightly depending on the production batch, camera, lighting, or even your screen settings.
These are always only minor differences, and in most cases, the photos are spot on - but we totally get that buying online can feel tricky. If you ever want more details, just drop us a message — we're happy to help!




