XRAY 363123-H Rear Left Hard Composite Suspension Arm XB4 Spec  [XR-363123-H]

XRAY 363123-H - Composite Long Suspension Arm Rear Lower Left - Hard
Price:
£8.99
Brand:
XRAY
Model:
XR-363123-H
Condition:
Brand New
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Race-Grade Rear Arm for Consistent Balance

The XRAY 363123-H Hard Composite Rear Left Suspension Arm is engineered for competitive drivers seeking a firmer rear end and longer component life. Tailored to the XB4 2020 Specs, it improves geometry and strength for more repeatable handling.

Geometry Tweak for Increased Rear Bite

Adding 2mm over the standard arm increases rear bite in lower-traction situations while maintaining stability on tackier surfaces. The design supports alternate shock placements, letting you alter roll centre and rear behaviour to suit the circuit.

High-Grade Composite for Lasting Use

Produced from a high-grade composite, the XRAY 363123-H balances stiffness with impact resistance for reliable steering feedback and extended service life. It is well matched to medium- and high-traction layouts where consistent control matters.

Compatibility Details and Setup Notes

Intended for the XB4 2020 Specs, this hard arm must be used in conjunction with the matching #363113-H hard lower right arm. Mount the rear shock either in front of or behind the rear shock tower to fine-tune rotation and traction.
Remark :
Due to limited stock availability, please notice that some XRAY items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

Will this arm change my rear roll behaviour?

Yes, the extra length and increased stiffness alter roll characteristics, generally increasing rear grip and making the car more stable under power on medium- and high-traction surfaces.

Is pairing with #363113-H mandatory?

For correct geometry and performance the XRAY 363123-H is intended to work with the matching #363113-H hard lower right arm, so using the specified pair is recommended.

How should I approach setup testing?

Start with your baseline setup and change the shock position one step at a time, testing a few laps after each change to understand the effect on rotation and traction.

Can this arm withstand club racing use?

The hard composite construction is aimed at regular racing and should hold up well in club-level competition, providing a durable option for repeated track use.

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