The YIKONG YK4103 RC Car Parts Shims (no.13069) are thin spacers used to adjust the clearance between components. They are typically installed in locations such as gears and bearings where axial play needs to be adjusted. The shim size is 8 × 5.1 × 0.2 mm.
The main purpose of the YIKONG YK4103 RC Car Shims (13069) is to reduce unwanted clearance, improve gear mesh, prevent side-to-side movement of components, and reduce abnormal wear and noise. This helps the drivetrain of your YIKONG YK4103 RC Car run more smoothly. If you notice excessive gear backlash or obvious play, you can add shims as needed to achieve a better fit. However, avoid using too many shims, as excessive preload may affect the normal operation of the parts.

