XRAY 301079-K X4 Split Front Wave Glass Fiber Upper Deck - Track Tested  [XR-301079-K]

Track-Oriented XRAY X4 Glass Fiber Upper Deck

The XRAY 301079-K X4 Glass Fiber Upper Deck is aimed at drivers wanting better traction and steering on slower or slick sections. Built from durable 1.5mm glass fiber, the deck increases chassis flexibility to help tyres retain more bite through corners.

Responsive Flex Across Conditions

The tailored shape of the X4 deck helps the chassis flex where needed, making the car more forgiving on variable grip. This controlled flex improves mechanical traction while keeping steering inputs accurate.

Simple Mounting Options for Setup Tuning

Select one of two setups to match track demands:

• Soft Setting: Secure with one rear screw to allow extra deck flex and stronger steering response. Best for boosting mid-corner bite but may trade off some stability under hard throttle.
• Stiff Setting: Fasten both screws to limit chassis flex, reducing mid-corner steering and rotation. This gives a steadier, more predictable feel on-power.