The XRAY 369911 4WD Rear Wheel Aerodisk is made specifically for the XB4 series and tuned for competitive track use. Constructed from a flexible but tough material, these wheels absorb impacts while keeping their shape through hard sessions.
The side profile is shaped to cut air and stabilise the car at speed, helping to maintain consistent handling through fast straights and sweeping corners. That aerodynamic focus reduces drag for smoother response on the track.
Reinforcement ribs inside the wheel prevent distortion under load, preserving the wheel geometry during aggressive driving. This internal support increases longevity and keeps handling predictable.
These wheels use a 14mm internal hex for a secure mount on XB4 rear hubs, making fitment straightforward for racers upgrading or replacing stock components.
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