Adjustable suspension strut for motor vehicles

The device has a spring element enclosing a vibration damper. The damper and spring element are both supported on a first linkage point but only the damper on a second, while a second spring element is supported on the second linkage point via the damper with a spring support movable by a control device. A stop is connected to the movable spring support that comes into contact with the first linkage point when the spring leg is compressed. The device consists of a vibration damper (2) and a spring element (3) enclosing the vibration damper extending between two linkage points (4,6). The damper and spring element are both supported on the first linkage point but only the damper on the second, while a second spring element is supported on the second linkage point via the damper with a spring support (8) movable by a control device (13). A stop (9) connected to the movable spring support comes into contact with the first linkage point when the spring leg is compressed.