2021 North Sonar AF Foil Edition

SKU 85004.210066 Categories , ,

2021 North Sonar AF Foil Edition


What’s Included: AF72cm or AF85cm Mast, S01 Stabilizer with Cover, 600mm Fuselage, AF Board Adaptor, Screw Packs A,B,C, Tool Set, Travel Bag.

This product is currently out of stock and unavailable.

The new refined aluminum foil section gives the best balance between light weight and increased strength for higher loads, so you can wing, SUP, surf and kite foil with confidence, making use of the fully interchangeable Sonar Foil System to extend your playtime on the water. Engineered to last, with exceptional strength to weight ratio, and our unique GeoLock system for a clean, direct feel with minimum resistance on the water.

The AF72 mast is ideal for shallower waters, and prone surf foiling.

The AF85 mast increases overall ride performance in choppy conditions.


  • Sonar AF72 or AF85 Mast
  • GeoLock tapered geometry locking system
  • Easy recovery from surface breaching
  • Sonar Foil Board Adaptor
  • Industry-standard 165x90mm bolt pattern
  • Fuselage 600mm
  • Modular foil system
  • Front Wing sold separately
  • Foil to board mounting hardware supplied with North Foil Boards


  • Sonar AF72 or AF85 Mast: 30% stiffer than the AK mast yet only 13% heavier, the AF72 mast is ideal for shallower waters, and prone surf foiling. The AF85 mast performs across all disciplines and offers you more ride height to clear waves or to heel over for tighter turns. It is also more forgiving in rougher conditions.
  • GeoLock Tapered Geometry Locking System: Engineered to last, our unique GeoLock tapered geometry locking system provides a more effective load-bearing connection between the Mast and Fuselage, locking them together, so they feel like one piece.
  • Easy recovery from surface Breaching: In perfect harmony with any Front Wing, our dihedral-shaped carbon pre-preg rear Stabilizer provides control and riding comfort, allowing fast pivoting turns and easy surface breach-recovery.
  • Sonar AF Foil Board Adaptor: New Board Adaptor for the AF72 and AF85 masts. FE-Analysis allows us to optimize the structure, increase strength in the areas of highest stress concentration and reduce unnecessary weight in lower stress areas.
  • Industry-standard 165x90mm bolt pattern: The Sonar Foil System can be mounted to any foil board with a 165x90mm bolt pattern. Foil Board and foil to board attachment screws sold separately.
  • Fuselage 600mm: CNC-machined anodized aeronautical grade 6061-T6 aluminum Fuselage. Hydro-dynamically optimized shape for minimum resistance.
  • Modular foil system: Customize your ride with our fully interchangeable foil parts to explore multiple disciplines and riding styles all with one setup.
  • Supplied with Sonar Travel Bag: This makes transportation of your foil safe and easy!

Additional information


AF72, AF85


you may be interested in

new products

featured products