US Patent 7252301 Snowmobile ski with alignment points

A snowmobile ski includes front and rear alignment points, which are preferably notches in the outer ribs of each of the skis. The notches facilitate alignment of the skis by receiving the end of a tape measure that is used to measure front and rear distances between corresponding front notches and corresponding rear notches of the skis. In one variant, the notches are equidistant from the skags to further simplify the task of aligning the skis.