This 7075 aluminium rear suspension arm set is supplied for use on the TAMIYA BBX BB-01 and carries GPM part number BBX022. The components are intended as a rigid alloy replacement that preserves factory mounting geometry while delivering reduced flex compared with plastic arms.
Intended for hobbyists performing tuning work, these arms are specified as 7075 aluminium and note accommodation for larger inner bearings; confirm bearing bore and hub clearances on the BBX BB-01 before assembly. The upgrade changes lateral stiffness and rear feedback and should be evaluated as part of a wider suspension setup.
As a 7075 aluminium replacement, these rear arms provide a stiffer rear mounting option for BBX BB-01 chassis tuning; verify fitment and bearing sizes prior to final assembly to ensure correct installation.