The XRAY 343131 Rear Upper Suspension Arm uses a hard composite to deliver firmer suspension response and improved track stability. It is especially helpful on high-traction surfaces and when heat can soften softer parts.
Hard composite offers increased stiffness and lasting durability under load. Choosing the XRAY 343131 arm helps keep suspension geometry stable and supports sharper steering feel for racers refining their setup.
When grip levels are high, the stiffer arm keeps the car predictable and reduces unwanted body roll, so drivers can carry more speed and place their lines with confidence.
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