Yokomo B9-BW50A 50g Centre Balance Upgrade for BD9  [B9-BW50A]

Adjust BD9 weight bias with a precision 50g centre block

The Yokomo B9-BW50A Center Balance Weight provides a simple method to alter the BD9 chassis centre of gravity by 50g increments. It is a compact part aimed at racers who want to refine balance without major rebuilds. Installing it centrally helps reduce unsettled transitions during rapid direction changes.

Why a centre balance weight matters on track

Centralising mass lowers rotational inertia and can make the chassis respond more predictably to steering inputs. The Yokomo B9-BW50A lets you tune that behaviour so the car tracks more consistently through linked corners and during throttle application.