The Yokomo B9-00219AA aluminum main chassis plate is manufactured as a replacement component for the BD9 2019 platform. It provides the central mounting surface for suspension pickups, drivetrain interfaces, and electronics locations on compatible BD9 models.
Being machined from aluminum, the plate raises overall chassis stiffness compared to stock composite parts and will influence transient response and steady-state balance. Inspect servo, ESC and motor clearance and revise shock geometry and ride height after fitting to ensure proper operation.
Use this plate to achieve a firmer chassis response that supports precise setup adjustments and consistent lap-to-lap behaviour.
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