XRay Composite Upright Rear - Hard (XR363353-H)

The XRay Composite Upright Rear - Hard (XR363353-H) is a compact, high-strength rear hub designed to balance reliability and performance. Its hard moulded composite construction is suited to medium- and high-traction tracks, offering precise handling and durable operation for demanding conditions.

Key Features

• Hard moulded composite material for durability and performance
• Two roll centre positions: lower has 1 fixed position; upper offers 3 positions
• 0° toe for stability and to help prevent suspension geometry changes in hard impacts
• Optimised bearing setup: 5x12mm outer bearing for increased dynamic load, 5x10mm inner bearing to reduce unsprung weight
• Compact design with superior strength
• Suitable for use on either left or right side

Track-Focused Tuning

Adjustable roll centre options allow you to fine-tune rear grip and cornering response to suit surface conditions. The mixed bearing sizes enhance drivetrain reliability while keeping rotating mass low. A practical, robust upgrade from XRay for consistent performance.