Yokomo BD9 Front Drive Chassis Upgrade 7075 by Arrowmax AM-920004  [AM-920004]

Overview of the AM Medius FWD swap

The Arrowmax AM-920004 AM Medius FWD Conversion Kit changes a Yokomo BD9 from its stock drivetrain to a front-wheel-drive configuration using a 7075 aluminium chassis plate. This description focuses on fitment, what to check during installation, and how the conversion influences weight distribution and handling on 1/10 on-road cars.

The kit's main component is the 7075 aluminium chassis plate noted in the product title, meant to replace or strengthen the BD9 area that controls mounting geometry and torsional stiffness. In many installs the kit moves front drivetrain mounting points and shifts component mass, so plan on reworking suspension settings and balance after install.

Fitment notes: this is a mechanical conversion that demands accurate alignment with your existing Yokomo BD9 parts. Confirm servo clearance, motor/ESC placement and body mount positions before locking down hardware. Expect to tweak ride height, toe angles and roll characteristics to restore predictable handling.

Compatible platforms

• Yokomo BD9

For racers converting a BD9 to front drive, the Arrowmax AM-920004 supplies a purpose-built 7075 plate that alters mounting geometry and rigidity; allow for setup time to re-tune handling on your 1/10 on-road chassis.