TRF421X Replacement D Arms x2 - Tamiya 51766  [51766]

TRF421X D arms set (two pieces)

This pair of D-type lower suspension arms is produced in carbon reinforced nylon and built to the D-arm geometry used on TRF421-series touring cars. They are intended as a direct swap for worn kit arms or as an aftermarket upgrade to alter suspension behaviour.

The reinforced nylon composition aims to reduce excessive flex while keeping controlled compliance, which supports more predictable suspension action on high-traction layouts and carpet surfaces. Drivers seeking a slightly firmer arm characteristic should find these beneficial for mid-corner stability.

Fitting is carried out in the same way as the original parts: remove the factory D arms and install these replacements into the original mounting points, ensuring correct left/right placement and unhindered movement of the suspension pins and links. No additional mounting hardware is necessary.