PROBLEM TO BE SOLVED: To achieve a wheelchair function by using most of constitution members of a cycle.SOLUTION: A cycle comprises a center frame 10 for connecting a head pipe 5 and a saddle pipe 8. The head pipe is rotatably connected in a plane substantially orthogonal to a longitudinal direction of the center frame, and on the connection part, first fixing means 11 for fixing the head pipe to a predetermined rotation position to the center frame is provided. The center frame is rotatably connected in a plane substantially orthogonal to an axial line of the saddle pipe, and on the connection part, second fixing means 12 for fixing the center frame to a predetermined rotation position to the saddle pipe is provided. By rotation of the head pipe and the center frame, and rotation of the saddle pipe and the center frame, a front wheel 2 and a rear wheel 6 are selectively positioned at a first position where they are located in a same plane, and at a second position where their axles are located on a substantially same axis.SELECTED DRAWING: Figure 2
