A shaped preform component (200) for a face portion (104) of a composite wheel (100), the shaped preform (200) having a hub (206) that extends around a central axis (Y), the shaped preform component (200) being formed from a cured composite fibre material having a compressibility of <2% volumetric under moulding conditions of 50 bar hydrostatic pressure and a temperature of 60 to 200 C.

Embodiments described herein provide aerodynamic bicycle rims and wheels. Embodiments can include a bicycle rim that is wider than the width of the tire proximate to the outer edge of the rim and is shaped so that there is a tangent line tangent to the rim and the tire. The tangent line can be tangent to the rim on the sidewall or elsewhere on the rim. The widest part of the rim can be radially inward from the outer edge of the rim or elsewhere on the rim and the tangent line can be tangent at the widest part of the rim or elsewhere on the rim.

A coating structure that provides subtle changes of different tints in a similar color system and a pattern includes a base layer 12 laminated on a basis metal 11, a color layer 13 laminated on the base layer 12 and a clear layer 15 as an outermost layer laminated on the color layer 13. The base layer 12 and the color layer 13 present different colors. The base layer 12 has recesses 12a in specific regions 10x. The base layer 12 is thinner in the specific regions 10x than in the other regions 10y. The color layer 13 has protrusions 13a in the specific regions 10x filled in the recess 12a. The color layer 13 is thicker in the specific regions 10x than in the other regions 10y.

A coating structure that provides subtle changes of different tints in a similar color system and a pattern includes a base layer 12 laminated on a basis metal 11, a color layer 13 laminated on the base layer 12 and a clear layer 15 as an outermost layer laminated on the color layer 13. The base layer 12 and the color layer 13 present different colors. The base layer 12 has recesses 12a in specific regions 10x. The base layer 12 is thinner in the specific regions 10x than in the other regions 10y. The color layer 13 has protrusions 13a in the specific regions 10x filled in the recess 12a. The color layer 13 is thicker in the specific regions 10x than in the other regions 10y.

The invention relates to a composite wheel (200) including a hub (202), a rim (204) and a connection structure (206) connecting the hub (202) to the rim (204). The hub (202) has front (208) and rear (209) faces and is formed with one or more mounting formations (216) for, in use, receiving a fastener to mount the hub (202) to a mounting surface of a vehicle. Each mounting formation (216) includes a fastening region (218) recessed into the front face (208) of the hub (202) and includes a fastener aperture (212) defining a passage between the fastening region (218) and the rear face (209) of the hub. Each mounting formation (216) also includes a front-to-fastener ply (224) extending between a front region of the hub and the fastening region (218) for, in use, transferring load between the front region of the hub (202) and the fastening region (218).

The present invention provides a disc wheel with variable thickness for agricultural tractor application. According to an embodiment, a disc wheel with variable thickness includes an axle mounting area 201, an axle mounting radius area 202, a wheel weight mounting area 203 and a connection bracket mounting area 204, wherein said disc wheel includes maximum thickness at the axle mounting area 101 and at the connection bracket mounting area 204. The disc wheel 200 uses less material input for imparting high strength. Further, the disc wheel 200 with variable thickness prevents bolt hole failures by providing higher strength at a centre. The thickness from the axle mounting area 201 gradually decreases up to the end of the wheel mounting area 203 and matches the thickness at the connection bracket mounting area 204. The disc wheel 200 with variable thickness is achieved using flow forming process 402.

A vehicle wheel includes a rim having an inner peripheral surface, and a center disc. The center disc includes a disc portion, and an arm plate portion extending radially outward from the disc portion. The arm plate portion includes an outer boundary defined by a plurality of arc outer peripheral surfaces and a plurality of concave boundary surfaces. The plurality of arc outer peripheral surfaces have a radius equal to a radius of the inner peripheral surface of the rim. The plurality of arc outer peripheral surfaces are joined to the inner peripheral surface of the rim at a weld attachment interface to produce a plurality of holes defined by the plurality of concave boundary surfaces and the inner peripheral surface of the rim.

A wheel for a utility vehicle includes a first attaching face with which the wheel is to be attached to a hub of a vehicle body, and a second attaching face with which the wheel inversed in a vehicle width direction is to be attached to the hub. The wheel is structured such that the first attaching face is, when attached to the hub, offset outward in the vehicle width direction with respect to a center line in the vehicle width direction of the wheel, and the second attaching face is, when attached to the hub, offset inward in the vehicle width direction with respect to the center line in the vehicle width direction of the wheel.

Vehicle wheels, methods of making vehicle wheels, and dual wheel assemblies are provided. The vehicle wheel comprises a generally cylindrical first region and a second region extending radially inwardly from the first region. The second region comprises a first surface, a second surface, an opening, and a hub surface. A distance from the first surface to the second surface defines a thickness. The opening is configured to receive at least a portion of a hub of the vehicle axle. The hub surface is adjacent to and surrounds the opening and extends from the first surface to the second surface. The hub surface comprises a generally flat portion and a relief portion adjacent to at least one of the first surface and the second surface. The relief portion surrounds the opening and extends along the hub surface for a distance of at least 25% of the thickness.

The present application discloses a wheel cleaning device comprises a lifting rotating system, a central hole cleaning system, a cleaning system for inner rim and back cavity, a synchronous clamping drive system, an outer rim cleaning system, and a bolt hole cleaning system, etc. The device may not only separately clean the center hole, the bolt hole, the inner rim and the outer rim of the wheel, but also may regulate the position and the angle of each nozzle according to the diameter and the height of the wheel.