The Arrowmax AM-T4-301060-V2 is a 2.25mm graphite upper deck made for the XRAY T4'20 chassis. It functions as a direct replacement plate that changes overall chassis stiffness while providing a stable mounting surface for electronics and common hop-ups.
Constructed from graphite, this plate is aimed at competitive drivers and tuners who use chassis flex to tune steering behaviour and traction. It installs using the stock T4'20 upper-deck mounting points and generally replaces the original plate without needing special fasteners.
Use the deck as a tuning variable: increasing upper-deck stiffness shifts front to rear flex characteristics, so try changes alongside tyre selection and suspension settings to reach the handling you want.
Treat this deck as part of an iterative setup process: test on-track, then refine suspension and tyre choices to suit the altered chassis response.
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