This Arrowmax AM-920021 AM Medius chassis plate is an aftermarket chassis option created for setup work on Yokomo BD9 FWD touring cars. Made from 2.25mm carbon fiber, the plate lets drivers modify baseline chassis stiffness to suit different track conditions.
Installation and setup notes: intended as a direct aftermarket upgrade for vehicles listed as Yokomo BD9, this plate alters rigidity and chassis balance. Check hole alignment and mounting geometry against your current BD9 chassis before fitting and retain original screws where practical. Modifying chassis stiffness will influence suspension response and steering feedback, so plan to adjust dampers and ride height after installation.
For competitive hobbyists who want a robust carbon option to tweak stiffness on a Yokomo BD9, the AM-920021 fits into standard setup practices without touching electronics or suspension components.
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