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North KB Sonar 85 Edition Black OneSize
-15%
Our fully customizable 85cm sonar mast design is suitable for all disciplines, giving you more headroom in clear waves or tighter turns. It's also more forgiving in rougher conditions. It's built to last, with an exceptional strength-to-weight ratio and our unique GeoLock system for a clean, direct ride with minimal drag on the water. Ride with comfort and control, and use the fully interchangeable sonar foil system to extend your playtime on the water. Simply choose the Sonar Front Wing that best fits your needs to complete your setup. (Sonar Front Wing, Foil Board and foil mounting hardware sold separately).
- 85cm Aluminum Mast
The 85cm mast is ideal for freeride foiling and tow surfing and increases overall riding performance in choppy conditions. This mast length is perfect for heeling more, flying the kite lower, and further boosting the foil system for a more controlled ride at high speeds. Precision CNC machined from 6061-T6 anodized aerospace grade aluminum for minimal drag, with structurally engineered joints for exceptional strength to weight ratio. - GeoLock
Designed for durability, our unique GeoLock tapered geometry locking system provides a more effective load bearing connection between the mast and hull by locking them together so they feel like one piece. The bolts engage the GeoLock while load transfer now occurs across the entire cross-section of the mast profile, allowing for more efficient load distribution and a longer-lasting connection. - Hydrodynamic Carbon Stabilizer
In perfect harmony with each front wing, our dihedral rear stabilizer provides control and ride comfort, allowing for quick turns and easy ground break absorption. Positioning the stabilizer on the top of the fuselage allows for clean, unobstructed airflow. Piercing the surface of the stabilizer is not a problem because the front wing sits lower in the water and is still fully submerged, giving you extra time to react and adjust your ride height. - Board Adapter
The sonar foil system is connected to the board by a lightweight, CNC-machined aluminum board adapter with tapered geometry that engages the mast. The board adapter and mast are fused together to create a bond for optimal load transfer and a stronger, more direct feel and steering impulse during foiling. - 165x90mm Bolt Pattern
The Sonar Foiling System can be mounted on any foil board with a 165x90mm bolt pattern. - Fuselage AF600
CNC machined anodized aluminum 6061-T6 aircraft fuselage. Hydrodynamically optimized shape for minimal drag. - Modular Foil System
Customize your ride with our fully interchangeable foil parts to explore multiple disciplines and riding styles with a single setup. - Front wing sold separately
- Includes 70cm mast, S01 stabilizer with cover, AF600 hull, on-board adapters, A,B,C bolt packs, tool kit, travel bag.
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