Refined aluminum foil mast engineered for optimal balance between lightweight construction and increased strength for higher loads.

The North Sonar Aluminum Foil (AF) Mast features a refined section that delivers the best balance between light weight and increased strength for higher loads. Available in multiple lengths to match your discipline and conditions: AF55 for extremely shallow locations, AF72 for shallower waters and prone surf foiling, AF80 as the perfect beginner size for wing foiling, AF85 for all-discipline performance and rougher conditions, and AF95 for more ride height to clear waves or heel-over for tighter turns.

Key Features:

• Refined Aluminum Section - Optimal balance of light weight and strength
• GeoLock Tapered Geometry - Unique locking system for strength and stiffness
• Multiple Length Options - AF55, AF72, AF80, AF85, AF95 for different uses
• Effective Load Distribution - Full cross-section load transfer
• One-Piece Feel - Mast and fuselage lock together securely
• Engineered for Durability - Made to last with secure connection

GeoLock Technology:

The Sonar Mast features the unique GeoLock tapered geometry locking system, engineered for exceptional strength and stiffness. GeoLock provides a more effective load-bearing connection between the mast and fuselage, locking them together so they feel like one piece. Screws engage the GeoLock, enabling load transfer to take place over the full cross-section of the mast profile, allowing for more efficient load distribution and a secure connection that's made to last.

Choosing Your Length:

• AF55 (55cm): Extremely shallow locations
• AF72 (72cm): Shallower waters and prone surf foiling
• AF80 (80cm): Perfect beginner size for wing foiling
• AF85 (85cm): All disciplines, more forgiving in rougher conditions
• AF95 (95cm): More ride height to clear waves or heel-over for tighter turns

Technical Specifications:

• Material: Refined aluminum section
• Connection: GeoLock tapered geometry locking system
• Lengths: 55cm, 72cm, 80cm, 85cm, 95cm
• Load Transfer: Full cross-section distribution
• IMPORTANT: AF Board Adaptor required (sold separately or included with Sonar AF and Prime Editions)

Perfect For:

• Wing foiling, kite foiling, and surf foiling
• Riders seeking aluminum durability and value
• All skill levels from beginner to advanced
• Various water depths and conditions
• Building a modular Sonar foil system

Ideal For: Foilers seeking refined aluminum construction with GeoLock technology for optimal strength-to-weight ratio across all disciplines