Abstract: The present invention refers to a vehicle chassis stringer, a vehicle chassis stringer assembly, and a vehicle chassis, wherein the stringer comprises a “C” shaped cross section horizontally downwards. The vehicle chassis comprises at least two stringer assemblies; and at least one crossbar, wherein each of the at least two stringer assemblies comprises a stringer and a set of central reinforcing members, wherein the stringer comprises a “C” shaped cross section horizontally downwards and the set of central reinforcing members comprises an “I” shaped cross section.

Abstract: A vehicle wheel includes a rim having an inner peripheral surface, and a center disc portion spaced radially inwardly from the inner peripheral surface. The center disc portion includes a body having a plurality of protruding portions separated from each other by curved recesses. The wheel further includes a plurality of structural arms with each structural arm having a first arm end attached to the inner peripheral surface of the rim at a first weld attachment interface and a second arm end received within one of the curved recesses of the body. Each of the second arm ends is attached to the center disc portion at a second weld attachment interface.

Abstract: A tubeless wheel for vehicles intended for the transport of loads or large number of passengers, such as trucks or buses, with external valve (8), as well as the products rim (1), disk (2) and valve (8) with the disk (2) mounted on the second ledge (4) of the rim (1). The parts have such geometry that, by a combination of factors distributed between rim (1), disk (2) and valve (8), enable the placement of the valve (8) on the external side of the disk (2) and the valve laying region is defined by two concurrent planes exempt of ribs.