EfoilSolutions LLC
Four Extended Range Shims for the Flitelab Stabilization Wings
Four Stabilizer Shims for the FliteLab Wings
Stabilizer Shim Set for Fliteboard FliteLab Systems
The four Stab Shims for the Flitelab Stab wings extend the range of the Flitelab shims in both the positive and negative directions. They are designed to help riders fine-tune the performance and balance of their FliteLab setup. These stabilizer shims fit Fliteboard C (conical) mast tails and EfoilSolutions tails for the conical mast, allowing precise adjustment of stabilizer angle and foil pitch.
By changing the stabilizer angle, riders can adjust the lift, speed, stability, and overall ride feel of their eFoil setup.
This expanded shim set provides more tuning options than standard shim kits, making it easier to optimize your foil for different wings, rider weights, and riding styles.
Why Use Stabilizer Shims on a Fliteboard?
Hydrofoil shims allow riders to adjust the angle of the stabilizer wing, which affects how the board balances and responds on the water. Small changes in shim angle can significantly change the riding experience.
Adjusting stabilizer angle can influence:
lift and take-off characteristics
pitch stability and rider stance
turning responsiveness
top-speed performance
Shims are a simple way to fine-tune foil performance without changing wings or hardware.
What Makes This Shim Set Different
Most Fliteboard setups include a limited range of stabilizer shims. This kit expands the tuning range by providing two additional negative and two positive shims, allowing more precise performance adjustments.
While the Flitelab shim range extends from -1 to +1, the EFS shims extend the range in both positive and negative directions from -2 to +2.

This wider range allows riders to experiment with different foil setups and riding conditions.
Shim Angles Included
The kit includes four stabilizer shim angles:
| Shim | Angle |
|---|---|
| (-2.0) | -2.0° |
| (-1.5) | -1.5° |
| (+1.5) | +1.5° |
| (+2.0) | +2.0° |
These graduated angles allow riders to make small, repeatable tuning adjustments to their foil setup.
Materials and Construction
The stabilizer shims are 3D printed using carbon-reinforced polycarbonate plastic or PETG, creating a lightweight and durable component suitable for marine environments.
Compatibility
This shim set is designed for:
Mast Systems
Fliteboard C (conical) mast
Tail Systems
Fliteboard stabilizers for the C mast and FliteLab
EfoilSolutions tails for the conical mast
Always verify compatibility with your specific foil setup before installation.
Who These Shims Are For
These stabilizer shims are ideal for:
riders tuning their Fliteboard foil performance
advanced riders experimenting with different wing setups
riders seeking higher speed or improved efficiency
anyone wanting more precise foil pitch adjustments
Even small changes to stabilizer angle can significantly affect the feel and performance of a hydrofoil setup.
Frequently Asked Questions
What do stabilizer shims do on a hydrofoil?
Stabilizer shims adjust the angle of the rear wing, which changes lift, pitch stability, and the balance point of the foil.
Why use negative stabilizer shims?
Negative shims reduce stabilizer lift, which can improve top speed and create a looser, more performance-oriented ride feel.
Are these shims compatible with the Fliteboard conical mast?
Yes. These shims are specifically designed for Fliteboard C (conical) mast systems.

