For drivers wanting improved traction on slick surfaces, the XRAY 302134-XS CFF Upper Arm in extra soft is a focused tuning option. The thinner carbon construction enhances mechanical grip and side bite, helping the car track better on low traction carpet and asphalt.
The arm is shaped to clear the inner shock position while retaining stiffness where it matters. That layout sharpens turn-in and strengthens lateral and forward traction. Built with CFF technology, the arm limits radial play for a more consistent response.
Install this arm on the front right or rear left of the XRAY X4. It performs best on very low grip circuits, but remember the softer compound offers less impact resistance compared with harder arms.
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