This is an RC-scale front lower suspension arm mount made for the TAMIYA BB-01 (BBX) chassis, supplied as model JR-TBB03-GU. The component is machined from aluminum with a gunmetal finish to replace the stock plastic piece where greater rigidity and consistent mounting geometry are required for precise model setup and maintenance.
The mount is designed to act as a direct replacement for the front lower arm mounting point on BB-01 (BBX) layouts. Installation normally uses the existing chassis mounting holes and original fasteners, preserving the factory suspension geometry. Verify alignment and torque during fitting to maintain correct steering response and suspension behavior.
For tuning and repairs this aluminum mount stabilizes the lower arm pivot, reduces flex under load, and gives repeatable fitment when swapping arms or adjusting setup. It is intended solely for scale RC suspension systems and not for use on real vehicles.
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