Tamiya TRF421X Split Upper Deck Lite Front - Graphite 1.6mm by Factory Pro O-TCP011S  [FP-O-TCP011S]

Split upper deck front for TRF421X

This Factory Pro front split upper deck is a graphite 1.6mm replacement piece produced for use on the Tamiya TRF421X chassis, designed as an RC-scale hop-up to interface with the stock mounting points. The part serves as the front half of a split upper deck, allowing builders to change the front deck material and thickness without altering mid or rear sections.

In practical tuning terms the 1.6mm graphite plate alters front chassis stiffness and response characteristics, giving a predictable change to front-end behavior when compared to the factory plastic deck. Install the plate using the TRF421X's existing screw locations and hardware, verifying alignment and clearance around the servo, steering linkage and front suspension components before running.

Fitment is specific to the TRF421X platform; confirm your chassis uses a split upper deck configuration before replacing the stock front piece. Because this is an RC-scale component, inspect mating surfaces for burrs and ensure fasteners are torqued to the chassis manufacturer's recommendations to avoid stress concentrations in the graphite material.