The Serpent 401993 bumper weight is a compact upgrade that adds 25 grams to the front of the Medius X20M FWD. This extra mass helps the car track straighter through fast changes and respond better to steering inputs.
Applying front ballast shifts balance and lowers the centre of gravity, which reduces understeer and improves mid-corner grip. It is a practical tweak for drivers chasing lap time consistency.
The part installs cleanly into the X20M FWD layout so you can try different weights during practice without permanent chassis changes.
A simple, effective option to fine-tune front-end behaviour for a sharper driving feel.
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