Abstract: A supporting strut for a wheelchair has a longitudinal shaft and a cross-shaft. The cross-shaft extends perpendicularly from the longitudinal shaft and has a mounting bracket, two proximal brackets, two distal brackets, a medial pivot hole and a brace pivot hole. The mounting bracket is U-shaped, is formed on and extends longitudinally from the distal end of the cross-shaft. The proximal brackets are mounted opposite to each other on the cross-shaft near the proximal end and are connected to the longitudinal shaft. The distal brackets are mounted opposite to each other on the cross-shaft near the distal end and are connected to the mounting bracket. The medial pivot hole is formed through the cross-shaft between the proximal and distal ends parallel to the longitudinal shaft. The brace pivot hole is formed through the cross-shaft between the medial pivot hole and the proximal end parallel to the longitudinal shaft.