XRAY X4F'25 Hard Rear Upper Deck Graphite 2.5 - Factory Pro O-XCP023H  [FP-O-XCP023H]

Stiff rear upper deck suited to XRAY X4F'25

This component fits the XRAY X4F'25 chassis and is supplied by Factory Pro under model O-XCP023H. The hard graphite 2.5 variant is chosen by drivers aiming to cut rear chassis flex and refine handling characteristics for competition driving.

The part increases rear torsional stiffness, impacting turn-in and mid-corner stability. Drivers commonly opt for a harder deck when seeking a firmer rear feel during high-load cornering or under heavy acceleration, allowing more consistent handling without swapping bulk components.

Fitting notes: the deck uses the factory X4F'25 screw locations and mounts directly to the chassis, so no permanent modifications are required. Inspect the existing fasteners for damage and replace any worn screws. Torque evenly with an appropriate hex driver and confirm there is sufficient clearance around the motor and suspension travel after assembly.

Setup suggestions: make incremental adjustments to rear shocks and anti-roll distribution after installing the graphite 2.5 deck. Track tyre wear and handling over a few test sessions to determine if damping, toe or roll centre changes are necessary.