Vehicle propelled by muscle power, in particular scooter, with at least one driving wheel and at least one tread surface (5, 5’) which is movable via a tread surface stroke, wherein the force transmission from the at least one tread surface (5, 5’) to the at least one driving wheel takes place by means of a driving element (6, 6’) which is guided with a nonpositive or positive fit via a drive shaft (8, 8’) which is coupled to the driving wheel via a freewheeling mechanism, wherein the drive shaft (8, 8’) and/or preferably at least one deflecting roller (7, 7’) is/are divided into at least two axial regions (7b, 7c; 7b’, 7c’, 8a, 8b; 8a’; 8b’) with radii which differ from one another or are variable, and the driving element (6, 6’) is divided into partial sections with different cross sections which are designed in such a manner that the partial sections (6a, 6b 6c; 6a’, 6b’ 6c’) of the driving element (6, 6’) are guided within the tread surface stroke (O-U) on the respectively corresponding axial region of the drive shaft (8, 8’’) and/or deflecting roller (7, 7’). As a result, the overall transmission ratio (uges) of the vehicle can be configured within the tread surface stroke (O-U) within wide limits, wherein, in particular, the drive shaft (8, 8’) which is designed according to the invention can undertake a plurality of revolutions without colliding with a driving element.