XRay Composite Upright Rear - Upper Position - Medium

The XRay Composite Upright Rear - Upper Position - Medium (XR323354-M) is a durable, multi-function rear upright designed to enhance stability and traction. Moulded from a medium-hard composite blend, it offers a strong balance of reliability and performance across most track conditions.

Engineered with lower roll centre positions, this upright helps reduce chassis collapse in high-speed corners for a more composed feel. Aluminium roll centre mounts provide multiple upper roll centre settings, while the upper roll centre is positioned around the driveshaft joint axis to promote traction and improve overall stability.

This Medium option sits within a wider range of uprights (medium, hard, graphite, aluminium), allowing racers to tailor rear-end response to track grip and driving style.

Key Features

• Medium-hard composite construction for strength and consistency on most tracks.
• Lower roll centre positions enhance stability and reduce collapse in fast corners.
• Aluminium roll centre mounts with multiple upper roll centre (roll center) settings.
• Upper roll centre aligned near the driveshaft joint axis to generate traction and stability.
• Multi-function rear upright for precise suspension tuning.