The Yokomo B9-BW30A is a 30g centre balance weight developed for BD9-style touring car chassis. Placed on the central section of the chassis, it provides a controlled increase in mass while maintaining lateral neutrality, making incremental setup changes straightforward.
Intended compatibility is with the MRTC-BD919 and MRTC-BD919S models stated by the manufacturer, and fitting on the midline helps preserve suspension and steering response while changing inertia characteristics.
Use this compact 30g centre weight when you need to tweak front-to-rear inertia without upsetting corner-to-corner balance, keeping handling consistent through setup iterations.
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