If you want tighter control over suspension behaviour, the Serpent SER401840 3-hole shock piston is a compact upgrade for Medius X20 cars. It helps refine damping feel for smoother weight transfer and more consistent lap times without complex changes to your setup.
The 3-hole layout moderates oil passage through the shock, giving a more predictable response under braking and cornering. That improved regulation helps maintain traction on paved and mixed surfaces used in club racing.
This piston is made to work with the Medius X20 MID 1/10 EP models (SER400033 and SER400034) and drops into standard shock assemblies. Installation is straightforward so you can get back on track quickly after a quick rebuild.
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