In an example embodiment a header includes a rotatable lean bar. A controller may be provided to manipulate the rotation of the lean bar. In an example embodiment, rotation of the lean bar may be manipulated in response to a characteristic of a vehicle, such as vehicle speed. In one example embodiment a control panel is provided in a cab of a vehicle to allow an operator to manipulate rotation of the lean bar. A sensor may be provided to detect characteristics of the rotation and a display provided to indicate rotational characteristics of the lean bar.
