Arrowmax AM-910021 Medius Yokomo BD9 Hard Topdeck 2.0mm Type 2  [AM-910021]

Tighten chassis stiffness on the Yokomo BD9 with Arrowmax AM-910021

The Arrowmax AM-910021 Medius topdeck is a targeted upgrade for the Yokomo BD9, using a 2.0mm hard plate to increase chassis rigidity. This firmer platform reduces flex and helps the car respond more predictably when driven hard.

Performance notes for the 2.0mm hard topdeck

Designed to match BD9 mounting locations, the topdeck aims to stabilise the chassis under cornering loads. The reduced flex supports more repeatable handling characteristics for timed laps and race heats.

Basic fitting and maintenance tips

Fitting is straightforward with normal RC tools; tighten mounting screws evenly and check them after a few runs. Periodic inspections will ensure secure attachment and prolonged topdeck life.