North Sonar Mast Shim

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

• 1x 1.0° Mast Shim

Please review the variant options for available sizes, configurations and package selections.