Captain Fin BMT Bonzer Surfboard Fin
Best high performance upgrade for classic mid length surfboard enthusiasts.
A signature collaboration piece designed specifically for the unique demands of Bonzer surfboard setups. It offers a refined, performance-oriented feel that balances stability with the precise release required for classic and modern surfing styles.
$120.95
More Alex Knost options
Who it's for
- Surfers seeking maximum speed and flow in clean waves
- Performance-minded riders who value a consistent and predictable feel
- Power surfers who want to push hard through their turns
Who should skip it
- Surfers looking for a versatile fin for traditional mid-lengths
- Lightweight riders who prefer a more forgiving and springy response
- Beginners still developing their basic bottom turns and board control
Performance breakdown
Hydrodynamic efficiency
The Bonzer-specific foil creates exceptional drive through drawn-out bottom turns.
Release capability
Provides a clean, predictable break when transitioning between rail-to-rail maneuvers.
Construction durability
Robust fiberglass layup withstands heavy reef impacts and daily wear.
Turn stability
The 8-inch template anchors the tail securely during high-speed carves.
Design aesthetic
Alex Knost’s signature silhouette brings a refined, classic look to any board.
Setup versatility
Highly specialized geometry works best when paired with dedicated Bonzer side-bites.
Key Specs
Fin Type
Bonzer
Depth
8 inches
Collaboration
Alex Knost
Know before you buy
Still have a question?
Ask Metto anything about the Captain Fin BMT Bonzer Surfboard Fin before you decide.