Disclosed is a folding wheelchair having a plurality of support members each having a first and a second end, a first separation distance measured between the respective first ends of a second support member and a fourth support member, a second separation distance measured between the respective second ends of the second support member and a fourth support member, a third separation distance measured between the respective first ends of the first support member and the third support member, wherein the wheelchair can be disposed in an open position and a folded position and, in the open position, the first separation distance is shorter than the second separation distance, the first separation distance is shorter than the third separation distance, and the second separation distance is shorter than the third separation distance. An intersection angle of the second and fifth support members is less than 55 degrees.