BD9 Central Balance Weight (40g) - Yokomo B9-BW40A  [B9-BW40A]

Central ballast for BD9 chassis

This Yokomo B9-BW40A is a 40g center balance weight made as an aftermarket accessory for BD9-series setups. Fitted at the chassis centre, the weight helps drivers refine mass distribution to moderate roll and pitch response without drastically altering overall balance.

The part suits BD9-type chassis and provides a straightforward option for adding central ballast during setup changes on electric touring cars. Fitment is at the chassis centre so adjustments affect centralized mass rather than corner-specific ballast.

Compatible Models

• MRTC-BD919
• MRTC-BD919S

Fit the B9-BW40A when testing chassis balance changes to keep mass centralized and maintain predictable handling during practice and events.