To lean a monocycle by facing its saddle rear side to the lower side, when a rider leaves from the monocycle, by providing the left side and right side projections with short leg which are made to two fulcrums, at the rear side of a saddle.

A saddle 2 on which a user can seat is provided at the upper part of a saddle column 1 of a monocycle, and a left side projection 3 and a right side projection 4 with a short leg in order to support two points, horizontally in the form facing downward, are provided at the rear side of the saddle 2. Consequently, the monocycle can be leaned easily by two fulcrums of the left side projection 3 and the right side projection 4 at the rear side of the saddle 2, and one fulcrum at a tire 5 contacting to the floor surface.