Tires represent the second largest equipment-related operating cost, second only to fuel, for truck owners in the concrete industry. Even so, many owners neglect proper maintenance to safeguard this investment. To ensure maximum performance and life expectancy from each tire, today's profit-conscious businessperson needs an aggressive tire maintenance program. This program should cover: proper inspection of tires, including air pressure and visual inspection for damage; proper tools for repair; ensuring valve caps are in place; proper rotation and alignment of tires.