By optimizing tire pressure, a full and correct footprint or contact patch is formed, improving grip. Off road, optimal tire pressure is 60% of the optimum highway pressure for normal gravel road speeds. This improve grip even further, improving control, handling, and safety. In severe conditions, a very low tire pressure provides amazing increases in traction, often doubling draw bar pull. The increased deflection of each tire helps keep the tires on the road gripping terrain.