





product code: 85004.220093
Features
- Stackable to cover -0.5deg to +2.5deg of tuning
- Instant customisation without removing the Stabilizer
- Tune for different disciplines and front wings
- Cost-efficient foil system adjustment
1x -0.5 Deg Shim, 1x 0.5 Deg Shim, 2x 1 Deg Shim

Stackable to cover -0.5deg to +2.5deg of tuning
The Shim Kit contains four individual, stackable shims, enabling multiple combinations.
Instant customisation without removing the Stabilizer
We’ve designed the shims to slot into place using a single screw insert, so you can adjust your foil easily without fully removing the Stabilizer. Simply undo one screw, loosen the other screw and slide one or more shims into place.
Tune for different disciplines and front wings
Unlike prone foiling, with wing and kite foiling there is side loading on the foil system due to the pull from the wing or kite.
Cost-efficient foil system adjustment
Durable and inexpensive, shimming is a cost-efficient solution to optimize your foil system.Stackable to cover -0.5deg to +2.5deg of tuning
Placing one or more shim in between the fuselage and stabilizer changes the Angle of Attack (AOA) and controls the amount of downforce the stabilizer creates on the overall foil system. To increase the stabilizer AOA, add positive shim. Positive shimming will increase front foot pressure. Negative shimming will reduce front foot pressure. The full stack (+2.5deg) creates the maximum recommended AOA to ensure your stabilizer is still effective without creating drag.
Instant customisation without removing the Stabilizer
Tune for different disciplines and front wings
What feels good on a wing or kite foilboard might not be ultimate for prone or tow-foil surfing. Shimming allows you to tweak the AOA and finetune your ride for a completely different feel. Shimming allows you to make full use of the Sonar modular foil system, so you get maximum performance from your front wings across different disciplines.
Cost-efficient foil system adjustment

