To provide a wheel for dual tires capable of achieving high contactness contact between annular flat surfaces of disks, reducing the fretting fatigue, and enhancing the corrosion resistance of a hub mounting part by forming a shallow recess around each bolt hole on a disk surface of the wheel.

A recess which is opened only outwardly in the radial direction is formed around each bolt hole in an annular flat surface on the outer side of a disk. The exerted stress while tightening a nut during the mounting is mitigated, an increase of a bearing pressure caused by the repetitive stress during the travel becomes very small, and as a result, the durability strength of a wheel against the fretting fatigue to a wheel can be considerably increased. Further, considerable corrosion easily formed in a contact part between an outer circumferential surface of a flange which is horizontally protruded at a hub mounting part and an edge of a hub hole of the wheel is prevented, the wheel can be easily attached/detached, and the sufficient plane accuracy can be maintained during the re-mounting.