Precision Spacing & Smoother Performance

With a variety of inner diameter options available separately and a range of thicknesses including 0.05, 0.1, 0.2, and 0.3 millimeters in each set, you can dial in spacing across a wide range of drivetrain assemblies. As part of the 1UP Racing MicroTune System, these shims help racers refine critical tolerances throughout the vehicle, improving drivetrain alignment, reducing unwanted play, and enhancing overall precision.

Features:

• Smaller-diameter shim design fits tight drivetrain areas
• Precision thickness options support fine tuning
• Reduced drivetrain play improves efficiency
• Smoother gear operation enhances performance
• Durable construction supports long term use
• Part of the MicroTune System for full vehicle tolerance tuning