Yokomo BD9 chassis magnesium stiff plate by Arrowmax AM-900004  [AM-900004]

Chassis plate for BD9

This Arrowmax accessory is a magnesium stiff plate designed for use with the Yokomo BD9 1/10 touring car chassis. The part focuses on increasing overall chassis stiffness to provide a more consistent response when adjusting suspension and weight distribution. The text below explains where this plate fits in a tuning workflow, what to check during fitment, and the predictable handling changes to expect.

Compatibility and role: the plate is intended for the Yokomo BD9 platform and functions as a direct replacement or upgrade to the stock lower/upper chassis piece depending on your BD9 variant, helping to reduce chassis flex and deliver crisper steering feedback. Installation notes: the component uses existing BD9 mounting locations and hardware, so plan to transfer stock screws and spacers; verify alignment at each mounting position before final torque. Tuning considerations: increased chassis stiffness typically moves handling toward quicker initial turn and more consistent mid-corner grip, so balance shock damping and anti-roll bar rates accordingly.

Compatibility

Designed for Yokomo BD9 series chassis; confirm your BD9 variant before fitting to ensure the correct mounting orientation and hardware usage.

Technically focused and neutral, this Arrowmax AM-900004 magnesium plate serves as a straightforward tuning part for drivers seeking reduced flex and more repeatable handling on Yokomo BD9 touring cars.