Abstract: The present invention is directed to a device for use on a vehicle including a bumper body assembly, the bumper body assembly, a swing arm assembly, the swing arm assembly including a rack providing a front-side carrier and a rear-side carrier; and a post kit, the post kit corresponding to the first cavity in the bumper body assembly. The swing arm assembly is detachably attached to the bumper body assembly with the post kit and the swing arm assembly is swingable about the post kit and swingable away from the bumper body assembly. The device of the present invention can further include a retraction mechanism and/or a locking mechanism for moving the swing arm assembly in a controlled manner. The front-side carrier can be an auxiliary gasoline can holder, and the rear-side carrier can be a spare tire holder.

Abstract: 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.