A gyro-stabilizer for a two-wheeled single-track vehicle, preferably a motorcycle, applicable in several driving modes, is configured in the form of a gyroscope in a gimbal mount, an outer ring of which is connected by a two-way axial pivot joint to the vehicle frame, wherein the axis of said joint is oriented along the longitudinal axis of the vehicle; an inner ring of the gimbal mount is connected by a two-way axial pivot joint to the outer ring; and a spin axis of the gyroscope is connected by a two-way axial pivot joint to the inner ring, wherein the axes of all three pivot joints are mutually perpendicular, and wherein the gyro-stabilizer has a means for locking rotation of the outer ring about the axis of the pivot joint between said outer ring and the frame of the vehicle. The gyro-stabilizer is disposed on the rear wheel swingarm and has a means for locking rotation of the inner ring about the axis of the pivot joint between the inner ring and the outer ring.