Yokomo BD9 Magnesium Extra-Flex Chassis Plate - Arrowspace by Arrowmax AM-900006  [AM-900006]

Arrowspace magnesium extra-flex chassis plate

This Arrowspace magnesium chassis plate is supplied by Arrowmax for use on the Yokomo BD9 touring car platform and is intended as a direct-fit option part for drivers concentrating on setup refinement. The "Extra Flex" label denotes the intended handling trait to consider during setup work rather than a measured stiffness rating.

On-track the plate alters how the BD9 chassis reacts to weight transfer and suspension inputs; tuners include it as one element within a wider setup package together with spring rates, damper adjustments, and ride height. The item is sold as an aftermarket replacement for the stock BD9 chassis panel when a magnesium plate and modified flex behavior are required.

Fitting requires routine RC maintenance skills: remove the stock BD9 chassis plate, confirm mounting hole alignment, and refit using the original hardware to preserve geometry. Verify clearance for electronics like the ESC and battery, and re-check drivetrain alignment after installation. When assessing changes, review corner entry and mid-corner balance before altering other setup items to isolate the plate's effect.

Use this chassis plate as part of stepwise setup testing rather than a one-off upgrade; log changes to springs and dampers when judging handling differences and return to the original components if you need a different baseline.