The North 2025 Sonar Mast Shim is a foil accessory built for a cleaner, more reliable and better-protected setup.
At Hydrofoil Academy, we recommend the Sonar Mast Shim for riders who want a cleaner, more reliable and better-protected setup.
Why riders choose it
- Designed to deliver dependable foil accessory performance
- Balanced feel for control, efficiency and rider confidence
- A strong choice for riders who value consistency and progression
What's included
Please review the variant options for available sizes, configurations and package selections.