An aerodynamic tailfin rotatably attached to a shaft-shaped member disposed on a vehicle. The tailfin swivels about the round shaft-shaped member for reduced drag in response to winds varying in direction impinging thereon.

A marked wheel rim is provided, including: a rim body and a mark. The rim body includes an outer surface. The mark is embedded on the outer surface and includes an outer peripheral edge adjacent to the rim body. The outer peripheral edge is non-protrusive beyond the outer surface. A method for manufacturing the marked wheel rim is further provided.

The present invention is an electronic hub device that comprises a frame mounted on a pole structure of an object. Frame comprises one or more sensors configured to detect one or more events around electronic hub device, and a plurality of light sources installed along a boundary of frame configured to illuminate a portion of frame within boundary of frame. Portion of frame includes promotional content selected based on user preferences. Frame further comprises a processor configured to activate plurality of light sources upon detection of one or more events.

A minimal fairing apparatus minimally shielding the faster-moving drag-sensitive uppermost wheel surfaces from headwinds reduces overall vehicle drag. The apparatus includes various upper wheel fairings of FIGS. 1-6. Each fairing shields a primary vehicle-drag-inducing upper wheel surface from headwinds otherwise impinging thereon.

The disclosure provides a wheel, drive wheel and wheel chair. The wheel includes an annular rim and a disk covering the rim on one side in an axial direction of the rim. The disk of the wheel includes a skin and a cushion member. The skin is formed of a fiber-reinforced material. The cushion member includes a cushion part and a shape retaining part. The cushion part is formed of a shock absorbing material and is disposed adjacent to the skin. The shape retaining part is formed of a fiber-reinforced material and is disposed adjacent to the cushion part.

A bicycle component comprises a first structural member made of a conducting material, an electrical insulation layer provided to the first structural member, and a second structural member configured to be attached to the electrical insulation layer by adhesive.

A bicycle rim comprises a radially outer peripheral part, a radially inner peripheral part, at least one sidewall, and at least one cover member. The at least one side wall radially extends between the radially outer peripheral part and the radially inner peripheral part. The at least one side wall comprises at least one opening. The at least one cover member covers the at least one opening, and the at least one cover member comprises a metallic material.

Described herein are aerodynamic wheels. According to some embodiments there is provided a wheel for a vehicle comprising: a rim; an inner hub; an attachment assembly configured to couple rim to inner hub; a first air engaging flexible and aerodynamic surface overlaying the attachment assembly configured to couple rim to inner hub and operatively connected to the inner hub and the rim, forming a first axial surface of the wheel; and a second air engaging flexible and aerodynamic surface overlaying the attachment assembly configured to couple rim to inner hub and operatively connected to the inner hub and the rim, forming a second axial surface of the wheel, which is axially opposed to the said first surface of the wheel; wherein said first air engaging flexible and aerodynamic surface and second air engaging flexible and aerodynamic surface are adaptable to external forces and change shape, when subject to such external forces.

A vehicle wheel spinning device comprising a disk shaped housing having a front and back disk forming a cavity therein is disclosed. The front disk has a series of decorative apertures formed therein. A spinning disk is rotatably mounted within said cavity. Various visual effects are produced by providing on the surface of the spinning disk facing the front disk of said housing at least one section of a contrasting color to the remainder of the surface. When the spinning disk rotates the colors show through said apertures during rotation of the spinning ring. The spinning device is attached to the front of a vehicle wheel in a manner that the housing rotates with the wheel and the spinning disk rotates separately from the rotation of the housing and continues to rotate for a time after the wheel stops spinning.

A wheel for a vehicle is provided. The wheel has a rim configured for mounting a tire thereto. The wheel also has a rotary drive member that is integrally connected to the rim. The drive member is configured to be operatively connected to a motor of the vehicle.