A wheelchair having two metastable positions. The wheelchair comprises a seat, a carriage, and a coupling. The seat comprises a seat frame having a front seat coupling axle and a rear seat coupling axle, and a flexible material coupled to the seat frame that transfers a weight of a user to the seat frame. The carriage comprises a front carriage coupling axle and a rear carriage coupling axle. The coupling comprises a right front tubular support, a left front tubular support, a right rear tubular support, and a left rear tubular support coupled by pivots to the axles of the seat and carriage. The tubular supports form two double rocker mechanisms, each double rocker mechanism constrained by stops to a range of rocking motion between a first metastable position and a second metastable position.
