Abstract: A wheel assembly that includes an outer rim assembly with a first outer rim portion, a second outer rim portion, and a plurality of outer cross members extending between the first and second outer rim portions, a tire assembly secured to the outer rim assembly, and at least a first bump stop assembly. The tire assembly includes an outer main body portion that includes first and second outer side wall portions and an outer contact portion extending transversely between the first and second outer side wall portions. The first bump stop assembly includes a first inner rim portion, a second inner rim portion and an inner main body portion. The inner main body portion includes first and second inner side wall portions and an inner contact portion extending transversely between the first and second inner side wall portions. The inner contact portion is coupled to the outer contact portion.