This axis has although she was shown along with the cartwheel not fitted to the cartwheel whose axle diameter was not specified. If you try to return the axis, I realized that the cost of returning so expensive was double than the price of the axis. So I got rid of the axis in the scrap, remounted the cartwheel on the old cartwheel the tire and inner tube, the axis of the old bike course did not fit well into the new. The rim of the new cartwheel also ended up in the scrap. I'll never order something, if not more accurate measurements are available