WHEEL, DRIVE WHEEL, AND WHEELCHAIR

Provided is a wheel () in which a disk () includes a ring-shaped rim () on which a tire () is fitted, and a disk () having a flat circular shape and disposed on an inner circumference of the rim (). The disk () includes a first rib () and a second rib () which extend in a radial direction of the disk (). A width of each of the first rib () and the second rib () in a circumferential direction of the disk () increases toward an outer circumferential side of the disk ().