Yokomo BD9 FWD Rear Topdeck 2.0mm Upgrade - Arrowmax AM-920024  [AM-920024]

BD9 FWD Rear Topdeck Section

This Arrowmax AM-920024 rear topdeck is an RC-scale replacement for the Yokomo BD9 FWD layout and forms the rear portion of the mid-profile topdeck assembly. It installs as a direct-fit accessory for drivers who maintain BD9 chassis setups and require a consistent reference for suspension and balance tuning.

As a tuning component, the topdeck alters chassis stiffness and changes how flex is distributed between the front and rear. Installing the rear topdeck standardises shock tower mounting points and servo linkage geometry, allowing you to iterate on roll centre and traction without modifying bulkheads or the main chassis plate.

Installation notes: this part replaces the factory rear topdeck section and fastens to the original BD9 rear screw locations. During fitting, verify alignment with shock towers and the battery tray, confirm clearance around the motor and driveshafts, and re-check fastener torque after initial test runs to maintain setup consistency.