This is a graphite rear upper deck plate designed for the Tamiya F103GT chassis and produced by 3Racing as part number F103GT-21/SG. It is an RC-scale hop-up intended to alter torsional stiffness at the rear of the chassis to influence handling and balance on 1/10 GT-style tracks.
The plate replaces the stock rear upper deck and uses existing mounting points on the F103GT platform, keeping fitment straightforward for standard hardware. Graphite's higher stiffness compared with typical plastics helps reduce unwanted flex under lateral loads while maintaining a lightweight profile suitable for RC models.
Use this part when you want to investigate chassis tuning through structural changes rather than suspension component swaps. Expect adjustments in rear traction and transient response as the stiffer deck shifts load transfer characteristics during cornering and acceleration in RC race setups.
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