Yokomo BD9 Track-Focused Mg Extra-Flex Plate Arrowspace - Arrowmax AM-900006  [AM-900006]

Arrowspace Mg plate for refined setup

This Arrowspace magnesium chassis plate is supplied by Arrowmax for the Yokomo BD9 touring car platform and serves as a direct-fit aftermarket option for drivers who want to dial in handling. The phrase "Extra Flex" signals the plate's intended influence on chassis behaviour rather than a precise rigidity measurement.

Practically, the plate shifts how the chassis reacts under braking, turn-in and mid-corner load transfer; racers combine it with spring, damper and ride-height changes as part of a full setup routine. It replaces the stock BD9 chassis panel when a magnesium component and modified flex characteristics are desired.

Fitment needs routine RC workshop skills: remove the original BD9 chassis, check that mounting holes line up, and refit using the vehicle's existing hardware to preserve geometry. Inspect clearance for the ESC and battery, and make sure the drivetrain runs true after installation. When testing, isolate the plate's effects by assessing corner entry and balance before making other setup tweaks.

Use the plate within a methodical testing plan: record damper and spring changes while judging handling differences and switch back to the stock chassis if you need to re-establish a different baseline.