TAMIYA TT-01d Alloy Front Lower Arm Upgrade TT055D by GPM  [TT055D]

Replacement front lower arm for TT-01d

This alloy front lower arm is an aftermarket RC replacement made by GPM for the TAMIYA TT-01d platform, supplied as one pair. It gives a firmer feel than the original plastic arm while remaining a straightforward tuning component for road-going models.

Installation notes: The arm fits into the TT-01d front suspension and typically uses the existing pins and fasteners from your car. It acts as the lower link in the suspension stack, influencing steering precision and camber behaviour when used with original uprights and linkages.

Performance role: Swapping to an alloy lower arm increases structural rigidity and repeatability under load, which helps when evaluating damper settings, toe and anti-roll bar changes. This is intended as a targeted upgrade for setup refinement, not a full chassis conversion.