This is a used but in excellent mechanical and very good cosmetic condition, Shimano Ultegra FC-6600 Crankset with 53-39 Chainrings. T hreads and spline are in excellent condition. The original chain rings seem to be in excellent shape with a ton life left. This crankset has light wear and minor light scratches and or dings nothing major. Some light heel rub is visible. Review photos or feel free to ask any questions.