The Exalt Brass Rotor Shim Set is the ultimate solution for racers and builders who want complete control over rotor float and end-play across a wide range of brushless motors.
Made from precision-machined brass for added mass and durability, this kit includes a variety of shim sizes to fine-tune motor performance on virtually any 540-class brushless motor using a standard 1/8” rotor shaft. Whether you’re building, tuning, or balancing—this kit ensures you always have the right shim for the job.
Key Features:
Compatible with all brands of 540 motors using a 1/8” rotor shaft
Multiple shim thicknesses included for tuning flexibility
Made from high-quality brass for long-lasting performance
Ideal for adjusting rotor float, reducing endplay, and improving throttle feel
Also useful for chassis suspension shimming applications
A mix of varied thickness brass shims
Designed for universal 1/8” rotor shafts
Packaged for easy organization and trackside convenience
Why Brass?
Brass adds subtle weight, helping to fine-tune balance and stabilize rotor motion without introducing magnetic interference.