The Serpent 402020 Topdeck Insert is a precision accessory created for the X20 '23 chassis to boost structural rigidity. It slots into the chassis and helps the car maintain composure under heavy loads, making fast direction changes and straight-line stability more reliable.
Stiffer chassis behaviour reduces unwanted twisting and helps the suspension work more predictably. For racers adjusting sway and spring rates, the insert provides a clearer baseline for tuning and consistent on-track performance.
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