To prevent a balance weight for adjusting the rotational balance of a disk wheel from slipping off from the disk wheel.

The disk wheel 10 is equipped with a disk part 11 and a rim part, wherein the disk part 11 is formed rigidly on one side in the rim width direction of the rim part 12, while the rim part 12 accepts tire installation at the peripheries 13a of the two ends 13 in the rim width direction. A bottomed hole 13c is formed at the end 13 of the rim part 12 on the side where the disk part 11 is installed. A plurality of such bottomed holes 13c are provided in the circumferential arrangement, each extending in the rim width direction and being open at the periphery 13a of the rim part 12. When rotational balance of the disk wheel 10 can not be established, the balance is adjusted by fitting a balance weight having a certain weight in the bottomed hole 13c lying in the position judged as necessary for the weight to be increased.