XRAY 301079-K X4 Split Front Wave Glass Fiber Upper Deck - Precision Flex  [XR-301079-K]

Chassis Control with the XRAY X4 Glass Fiber Upper Deck

The XRAY 301079-K X4 Glass Fiber Upper Deck provides a measured increase in chassis flex to help improve traction and steering on low- and medium-grip circuits. Fabricated from 1.5mm glass fiber, it gives a reliable compromise between durability and flexibility.

Adaptive Flex for Varied Grip Levels

The deck's design encourages predictable chassis movement as grip changes, allowing the tyres to maintain better contact during cornering phases. This produces steadier steering input and improved mid-corner behaviour.

Two Mounting Modes to Match Your Setup

Pick the mount that suits your driving and track conditions:

• Soft Setting: Fit only the rear centre screw to allow extra flex and stronger steering reaction. This helps turn-in and bite but can make the car feel less planted under heavy throttle.
• Stiff Setting: Use both rear screws to stiffen the deck, reducing mid-corner steering and rotation. This yields enhanced stability and easier throttle control.