The Tamiya Mini 4WD Aluminum Rail Guard in gold, model 3RACING M4WD-49/GO, is a precision accessory intended to reduce lateral instability and protect vulnerable chassis areas under race conditions. Its aluminium build balances stiffness with minimal mass to suit tuned setups.
Machined aluminium provides consistent contact and resists deformation from repeated impacts. The guard is compatible with standard Mini 4WD rail mounts and can be integrated without major alteration to the chassis geometry, allowing teams to retain established tune settings.
Use the rail guard to limit roll and track deviation through complex sections. When fitting to a competition car, verify screw torque and clearances, and test on a practice lap to confirm no interference with suspension or bodywork.