This is an optional XRAY XB2 Anti-Roll Bar Front 1.0mm Set.
Anti-roll bar set 1.0mm made from special spring steel material. Stabilizes the front of the car. Roll bars are easily mounted to optional aluminum front roll center holder XRA322042 and can be adjusted with linkages.
Anti-roll bar wires of different thickness are optionally available for fine-tuning. The thickness of each anti-roll bar is laser-engraved for easy identification.