The Serpent 402187 Topdeck hard arrives as a purpose-focused RC-scale topdeck set intended for Medius X26 applications listed under SER400052. The package contains 2 pcs of the topdeck element marked as "hard", which is aimed at riders who tune chassis flex to influence on-track handling.
Functionally the topdeck sits above the main chassis plate and contributes to overall torsional stiffness. In practice, swapping to a harder topdeck reduces flex between front and rear mounting points, which can sharpen turn-in and stabilize high-speed direction changes depending on your complete setup. Keep in mind that changes to topdeck stiffness interact with suspension and shock setup, so treat this part as one tool within a broader setup process.
Installation is straightforward for experienced model technicians: remove the body and existing topdeck fasteners, fit the replacement topdeck in the same mounting locations, and secure using the original hardware. Verify alignment and clearance for radio gear and battery before final tightening. No special tools are supplied.
This Serpent 402187 Topdeck hard (2 pcs) provides a simple, chassis-focused option for fine tuning Medius X26 setups where reduced topdeck flex is desired, and it should be evaluated alongside suspension and roll center adjustments to achieve balanced handling.
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