PURPOSE: To prevent inclination of vehicles automatically through operation of hydraulic pressure by utilizing centrifugal force.

CONSTITUTION: When running on a curved road, hydraulic pressure is applied to a master cylinder 2 due to centrifugal force of a pendelum 1, and also applied to a cylinder 4 for height adjustment through a pipe 3, which pushes up a body's outside. Meanwhile, the center of the body acts as a hinge 6, so, one side is pushed up if other side is pushed down. Consequently, it prevents inclination by pushing up the body as much as the stroke of spring compressed by a centrifugal force.