The invention relates to a method for maintaining the equilibrium of a two-wheeled single-track vehicle. A method for maintaining the equilibrium of a two-wheeled single-track vehicle by controlling the position of the center of gravity via a sliding axle is characterized in that a rear axle has disposed thereon a wheel capable of rotating on the axle and sliding along said axle. Loss of equilibrium is monitored by an electronic monitoring device. Equilibrium is restored by shifting the vehicle's center of gravity by sliding the rear axle, with a fork, relative to the wheel by means of a screw-type, rack-and-pinion-type or other drive mechanism, with power being supplied from an onboard or external source. The invention maintains the equilibrium of a two-wheeled single-track vehicle without using gyrostabilization mechanisms and without the help of changing the direction of motion by turning a handlebar.