Yokomo BD9 Chassis Upgrade Plate Arrowspace Mg Extra Flex - Arrowmax AM-900006  [AM-900006]

Arrowspace Mg extra-flex tuning plate

This Arrowspace magnesium chassis plate is supplied by Arrowmax for the Yokomo BD9 touring car platform as an aftermarket direct-fit option for competitors focused on setup detail. The term "Extra Flex" describes the handling tendency to take into account while tuning rather than a numeric stiffness figure.

In use the plate changes chassis torsional behaviour and the way the car reacts to weight transfer and suspension inputs; builders typically use it alongside changes to spring rates, damper profiles and ride height within a controlled setup plan. It replaces the stock BD9 panel where a lighter magnesium panel and modified flex characteristics are preferred.

Installation is straightforward for anyone familiar with RC maintenance: remove the original BD9 plate, check hole alignment, and install with the existing fasteners to preserve geometry. Confirm clearance around the ESC and battery and recheck drivetrain alignment after refit. When tuning, isolate the plate's effect by testing corner entry and mid-corner balance before further adjustments.

Treat this plate as part of an iterative setup workflow: record each change to springs and dampers while assessing handling differences and revert to the stock chassis if you need to retest from the factory baseline.