Handlebar (1) for motorized wheelchair (100) for a person transportation, of the type comprising a supporting frame (2), at least one couple of wheels (3, 4) each disposed sideways to said supporting frame, and means rotatably operable for changing the direction (5) of said wheelchair and accommodated, at least in part, in said supporting frame, said handlebar comprising at least one idler arm (7), integrally connectable to said means for changing the direction to drive the rotation of said means for changing the direction, and at least one hand grip (8) to drive the rotation of said at least one idler arm, said handlebar being characterized by comprising a mechanism (9) to constrain the displacement of said at least one hand grip with respect to said at least one idler arm, between a first operative position (P1), wherein said at least one hand grip is disposed in front of said supporting frame, and a second operative position (P2), wherein said at least one hand grip is disposed sideways with respect to said supporting frame, and vice versa.
