Abstract: A wheel assembly for use on vehicles in rugged conditions including, without limitation, off-road and trail conditions. A rim assembly having a rim flange is supported by a central hub member. The rim flange has a bead seat and allows a tire—including an under inflated tire—to flex without chaffing or cutting of the tire. A sacrificial abrasion ring is mounted to the outer surface of the rim flange. An optional removable accessory cap can mount to the wheel assembly to prevent mud, snow and/or other debris from collecting in the center of the wheel assembly.

Abstract: A fully-adjustable boarding step for vehicles, and especially for off-road vehicles, wherein the cab or operator's position is high enough from the ground such that it is not easily accessible for boarding because of the clearance required between the ground and the frame of the vehicle. The device is a retractable, fully adjustable step adapted to fit a variety of the frames of presently used vehicles.