The FP-O-XCP031S upper deck is made as a direct-replacement style plate for the Xray X4'26 platform. As a medium-stiff 1.6mm graphite component it mounts over the bulkhead area and the center stack to reduce local flex and spread loads through the chassis center. In practical terms this plate alters how the front and rear modules communicate through the center, offering a focused approach to tweak chassis stiffness without changing primary suspension geometry.
Graphite is chosen for upper decks because it offers a strong stiffness-to-weight ratio. The FP-O-XCP031S uses 1.6mm graphite to balance added rigidity with some compliance. The deck geometry, including cutouts, mounting bosses and reinforced edges, controls how the plate mates with shock towers and bulkheads. Expect a light, durable plate that resists permanent bending under normal hobby use.
Made specifically for the Xray X4'26, the FP-O-XCP031S follows the factory mounting points and interfaces. It is intended for the same generation of electric touring car chassis and replaces the stock upper deck. Its influence is targeted at the center structure, so its benefits are most noticeable when assessing mid-chassis feel or restoring an X4'26 to a particular setup.
This upper deck is suited to builders who service Xray X4'26 cars or owners keeping a period-correct setup. It is a straightforward hardware swap for anyone seeking a modest change to center stiffness while keeping suspension geometry untouched. The part is practical for routine maintenance, restoration projects, and careful chassis tuning.
The Factory Pro FP-O-XCP031S provides a pragmatic mid-stiffness upgrade for Xray X4'26 owners who want a reliable graphite replacement that adjusts center stiffness without wider platform changes.
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