XRAY 363113-H Hard Rear Right Arm for XB4 Track Tuning  [XR-363113-H]

Optimised Rear Arm for Grip

The XRAY 363113-H rear right suspension arm is designed to sharpen traction and rear stability on a variety of racing surfaces. Its hard composite build provides a firmer rear response suited to medium- and high-traction conditions.

Extra Length for Traction Control

With a 2mm increase in length over older versions, this arm helps the rear tyres find more bite in looser sections while still remaining stable on high-grip tracks. That extra reach improves straight-line and cornering predictability.

Adaptable Shock Placement

Engineers made the XRAY 363113-H to accept shocks mounted either in front of or behind the rear shock tower. That flexibility lets you dial rear compliance and roll characteristics to match track grip and driving style.

Compatibility Notes

Made specifically for the XRAY XB4 2020 car, this arm is best used with its complementary #363123-H hard lower left arm for balanced handling and consistent setup changes.