Serpent SER402186 Topdeck soft (2) X26 topdeck part for Medius X26 steel EP  [SER402186]

Topdeck soft for chassis tuning

The Serpent SER402186 Topdeck soft is an RC-scale topdeck set supplied as 2 pcs, intended for fine-tuning chassis flex on the Medius X26 steel EP (SER400052) platform. The soft topdeck reduces overall stiffness compared with harder topdecks, affecting mid-corner traction and weight transfer behaviour in a predictable, incremental way.

Installation is straightforward on original Medius X26 steel EP mounts, replacing the existing topdeck while maintaining original mounting points and hardware. When fitting, ensure the deck sits flush and that all mounting screws are evenly tightened to avoid introducing twist; verify wheel alignment and perform short test runs after any change.

Tuning notes: use the soft topdeck to soften front or rear response depending on placement in the stack, combine with spring and swaybar adjustments for balanced handling, and log lap times or feel changes to evaluate the effect before making further changes.