The 3Racing DF03RA-05 aluminum rear suspension arms are manufactured to reinforce the rear suspension of the Tamiya DF03 while offering predictable response for tuning. The aluminium construction reduces compliance compared to stock plastic arms, aiding repeatable setup changes.
These arms interface with standard DF03 mount points to preserve geometry and allow precise adjustments. The added stiffness helps maintain static and dynamic alignment during aggressive driving, which is useful when refining camber, toe and damping settings.
Upgrading to aluminium rear arms should be considered alongside shock and roll bar adjustments to balance the stiffer rear behaviour. Routine inspection of hinge pins and mounting hardware is recommended after high impact sessions to ensure consistent performance.