This is an optional XRAY XB2 Front Lower 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 is a perfect balance between reliability and performance. The suspension arm is rigid to provide a responsive feel and extreme durability.
Universal design front arm can be used on both left and right sides.
The arm molded from hard composite which is suitable for most track conditions, especially for medium- and high-traction tracks.