This is an optional XRAY XT2 Front Composite Suspension Arm (Hard).
HARD front lower suspension arm made from super-tough high-tech composite material. The exclusive composite mixture used for suspension arms gives a perfect balance between reliability and performance; the suspension arm is rigid enough for a responsive feel and extreme durability.
The arm - molded from hard composite - is suitable for most track conditions, especially for medium- and high-traction tracks.
Universal design allows this front arm to be used on both left and right sides.