In a step of forming a fixing groove for a wheel disk (20), an inner circumferential end of a first hub hole peripheral portion (41) is squeezed by a protruding portion (D21) of a back die (D2) and a dent portion (D31) of a front die (D3). In this manner, a fixing groove (50) is formed in a back surface of the first hub hole peripheral portion (41). Along with this, an excess material is pushed into the dent portion (D31) so that a protrusion (51) is formed on a front surface of the first hub hole peripheral portion (41). Thus, without requiring a step of cutting the excess material, the fixing groove (50) can be formed in a back surface of a hub hole peripheral portion (30).

In a step of forming a fixing groove for a wheel disk (20), an inner circumferential end of a first hub hole peripheral portion (41) is squeezed by a protruding portion (D21) of a back die (D2) and a dent portion (D31) of a front die (D3). In this manner, a fixing groove (50) is formed in a back surface of the first hub hole peripheral portion (41). Along with this, an excess material is pushed into the dent portion (D31) so that a protrusion (51) is formed on a front surface of the first hub hole peripheral portion (41). Thus, without requiring a step of cutting the excess material, the fixing groove (50) can be formed in a back surface of a hub hole peripheral portion (30).

A road wheel for a vehicle includes a face portion and a rim portion. The face portion is formed from a metallic alloy and defines a central portion plurality of spokes extending between the central portion and a proximal bead element. The rim portion is formed from a composite material and defines an annular wall circumscribing a wheel axis extending to a distal bead element from said face portion. The proximal bead element is defined by the metallic alloy and the distal bead element is defined by the composite. The face portion and the rim portion are interconnected in interlocking engagement.

A wheel includes a first hoop attached to a second hoop about a circumferential interface. The first and second hoops form at least part of an enclosed box structure positioned circumferentially around the wheel and adjacent to an outboard side of the wheel. The box structure may be formed at least in part by circumferential projections of the first hoop and the second hoop. The wheel may also include a central hub that optionally includes spokes. In some embodiments, the central hub may form part of the enclosed box structure. In some embodiments, a first hoop portion and a second hoop portion may be integral or unitary, with a box structure integrally formed between the hoop portions.

Provided is a wheel (6a) in which a disk (62) includes a ring-shaped rim (60) on which a tire (6b) is fitted, and a disk (62) having a flat circular shape and disposed on an inner circumference of the rim (60). The disk (62) includes a first rib (62a) and a second rib (62b) which extend in a radial direction of the disk (62). A width of each of the first rib (62a) and the second rib (62b) in a circumferential direction of the disk (62) increases toward an outer circumferential side of the disk (62).

Provided is a wheel (6a) in which a disk (62) includes a ring-shaped rim (60) on which a tire (6b) is fitted, and a disk (62) having a flat circular shape and disposed on an inner circumference of the rim (60). The disk (62) includes a first rib (62a) and a second rib (62b) which extend in a radial direction of the disk (62). A width of each of the first rib (62a) and the second rib (62b) in a circumferential direction of the disk (62) increases toward an outer circumferential side of the disk (62).

A wheel includes a rim that is at least partially made from a fiber reinforced plastic. The rim has an inner side extending to the hub region of the wheel and an outer side extending centrifugally away from the hub region of the wheel whereby the outer side includes a well which is interconnected with an outer shoulder by a transition area. A wheel center is interconnected with the inner side of the rim by at least one fastener wherein the at least one fastener penetrates the rim via at least one opening that extends from the inner side of the rim to the outer side of the rim. An annular cover is arranged at the outer side of the rim in a circumferential direction around the wheel and thereby covers the at least one fastener and/or the at least one opening.

A lightweight wheel spoke for an automobile increases the strength around the heat dissipation holes by thickening the material around the heat dissipation hole on the inner wall of the spoke. The thinning of the material between the heat dissipation holes, that is where there is no heat dissipation holes on the tapered barrel, enables the tapered barrel of the spoke to form a unique concave-convex structure on the inner wall or the outer wall, thereby enabling the entire spoke to be secured.

A lightweight wheel spoke for an automobile increases the strength around the heat dissipation holes by thickening the material around the heat dissipation hole on the inner wall of the spoke. The thinning of the material between the heat dissipation holes, that is where there is no heat dissipation holes on the tapered barrel, enables the tapered barrel of the spoke to form a unique concave-convex structure on the inner wall or the outer wall, thereby enabling the entire spoke to be secured.

An assembled wheel includes a spoke, a T nut, a screw, a fixing ring, a rim, a brake drum. In use, the T nut is installed in the outermost T groove of the spoke; a second boss on a connecting ring fits with the groove on the back of the spoke; the spoke, the connecting ring and the fixing ring are connected together by the first screw; grooves on the outer side of the brake drum fit with a first boss in the right circumferential direction of the fixing ring; and the second screw axially fixes the brake drum in the fixing ring through a spacer.