Tamiya TRF421X Front Split Upper Deck Plate, 2mm Graphite (O-TCP011) by Factory Pro  [FP-O-TCP011]

Graphite front plate engineered for TRF421X durability

The split upper deck front is an aftermarket 2mm graphite plate designed for the Tamiya TRF421X platform, produced by Factory Pro, O-TCP011. It is used to modify front chassis stiffness and the car's transient reactions without changing suspension geometry.

Design and role: the plate bolts to the front portion of the TRF421X upper deck and acts as a stiffness control element to influence how the chassis flexes under braking and turn-in. Moving to a 2mm graphite front plate can increase structural rigidity and change steering feedback on medium to high grip tracks.

Installation notes: extract the stock upper deck front per your chassis instructions, inspect mounting faces for flatness, and use the same attachment points and hardware as the original. Tighten hardware evenly and check for interference with steering linkages and servo components before completing reassembly. Run a few laps to confirm the handling shift and fine tune dampers or roll bars if needed.

Compatibility and tuning context: built specifically for TRF421X-family cars, this part is intended for chassis tuning steps rather than changing arms or bulkheads. Introduce it progressively and document lap time and balance changes to assess the upgrade.