Upgrading the XRAY X4 2023 model with the XRAY 301079 Graphite Upper Deck 2.0mm split front helps refine steering feel and chassis behaviour. The split front approach targets front stiffness while maintaining the flex range needed for predictable handling.
The split front increases local torsional flex where beneficial, helping the car hold lines through fast sections. The 2.0mm thickness offers a compromise between durability and fine-tunable flex that suits competitive setups.
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