The Factory Pro FP-O-XCP031 replacement upper deck is a direct-fit graphite plate designed for the Xray X4'26 touring chassis. As an upper deck, its role is structural: it links bulkheads, controls spanwise rigidity, and influences how the center section responds to inputs. This Graphite 2.0 edition targets a medium stiffness point intended to balance chassis torsion and response.
The part mounts in the X4'26 assembly locations and follows the OEM geometry so there is no need to alter mounting points. Graphite construction reduces local flex compared with standard composite decks, while the medium thickness of this release is intended to sit between high-stiff and low-stiff factory options. In practice that means the deck contributes to a stable center section without making the car overly rigid in the front-to-rear direction.
Graphite 2.0 indicates a revised layup and finish over earlier plates. Expect a clean machined surface and controlled thickness tolerances that help keep stack heights consistent. The medium stiffness designation speaks to a compromise: enough rigidity to reduce unwanted chassis twist but with sufficient compliance to retain some mechanical feedback through the suspension system.
This upper deck is aimed at hobbyists who maintain an Xray X4'26 platform and want a replacement or alternative deck that changes mid-range torsional behavior. It is suitable for someone focused on platform consistency and part-for-part compatibility, and it also serves collectors who value factory-style upgrades with clear material and version identification.
The FP-O-XCP031 Graphite 2.0 upper deck offers a measured stiffness option for Xray X4'26 owners seeking consistent chassis behavior and a direct replacement component with defined material properties.
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