Tamiya 42390 TRF421 Aluminum Lower Deck Competition Plate  [42390]

Gain More Stable Handling

The Tamiya 42390 TRF421 Aluminum Lower Deck is a targeted upgrade for owners seeking steadier behaviour from their Tamiya TRF421 chassis. Built for use on carpet and tarmac, this deck helps the car hold a line with less unwanted flex.

Robust 2mm Plate with Measured Flex

Constructed from 2mm aluminium, the lower deck gives added rigidity while its cutouts allow controlled chassis movement. That combination improves precision without removing the ability to fine tune handling.

Exact Fitment for the TRF421

This component is produced to fit the Tamiya TRF421 chassis specifically, providing a seamless replacement that mounts to the factory points. Installation is quick and does not require chassis modification.