The Factory Pro O-XCP032S is a purpose-made rear upper deck for the Xray X4'26, machined from graphite to a nominal 1.6 mm thickness. It installs in place of the stock rear upper deck to influence chassis stiffness distribution while retaining factory suspension pick-up geometry. The plate ties the rear bulkhead to centre bracing and is chosen by tuners who want predictable changes in rear behaviour.
Graphite at 1.6 mm delivers a mid-level stiffness that sits between thin carbon and heavier composite options. That results in improved structural control during acceleration and cornering without the brittleness of thicker plates, while the precise machining keeps mounting repeatable across rebuilds.
Specifically designed for the Xray X4'26, the O-XCP032S uses the existing mounting points and replaces the factory part. As an aftermarket structural plate it affects rear traction transition and roll characteristics by altering the link between the rear bulkhead and centre rails.
This plate suits racers and hobbyists restoring or fine-tuning an Xray X4'26 who want a dimensionally accurate graphite option. It is aimed at those prioritising repeatable assembly and consistent chassis geometry rather than broad handling fixes.
Use this component as a focused tuning item: it adjusts stiffness distribution and repeatability. Confirm fastener condition and hole alignment when swapping parts and consider it alongside spring, damper, and anti-roll adjustments for optimal results.
The Factory Pro O-XCP032S is a focused graphite rear upper deck for the Xray X4'26, offering a precise material swap to refine rear chassis response while maintaining factory fitment.
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