Abstract: A tubular side bar and mounting system may have a plurality of separate components that allow the tubular side bar to be mounted to a truck or other vehicle by one person. The system may include one or more mounting brackets that can be mounted to the truck before mounting a tubular side bar. After the mounting brackets are secured to the truck, the tubular side bar is then mounted to the mounting brackets. In this manner, a single person may install the tubular side bar to the truck. To attach the mounting bracket to the tubular side bar, the mounting bracket may be clamped along any point of an elongate channel formed in the tubular side bar to account for trucks with different mounting places. One configuration of the running board can be mounted to different trucks having different mounting places configuration.