Tamiya 42390 TRF421 Aluminum Lower Deck Race Upgrade  [42390]

Fine Tune Handling and Balance

The Tamiya 42390 TRF421 Aluminum Lower Deck is a focused upgrade for racers wanting tighter control from their Tamiya TRF421 chassis. Intended for competitive carpet and asphalt use, the aluminium deck helps deliver more consistent traction and improved stability through corners.

Built for Strength with Controlled Flex

Produced from 2mm aluminium, this lower deck increases chassis stiffness while featuring slits that permit measured flex. The result is a more stable platform at speed without losing the tunability needed for close racing.

Fitment Notes and Fast Installation

This part is made specifically for the Tamiya TRF421 chassis for a precise fit and straightforward installation. It uses the existing mounting points so you can fit it quickly and get back on track.