This 1.5mm topdeck spacer is an RC-scale accessory made to fit the Medius FWD topdeck area and is supplied as a matched pair so you can adjust both sides of the chassis evenly. It lets you alter the stack height between the topdeck and lower components while preserving the stock chassis layout.
Fitting is simple: place the spacer at the existing topdeck mounting points and re-torque to the chassis maker's recommended values. Use identical spacers left and right to keep the topdeck level; using different thicknesses intentionally creates roll or preload for tuning experiments.
In practice this spacer is useful for three things: small incremental ride-height changes, extra clearance for battery or electronics, and a straightforward way to change topdeck stiffness and overall balance. As with any scale part, double-check fitment on your specific Medius FWD topdeck before making a permanent installation.
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