FINDLAY, Ohio--(BUSINESS WIRE)--Cooper Tire & Rubber Company is adding to its Roadmaster line of commercial tires with a new entry that is designed specifically to withstand the demands of sanitation trucks. The new RM230 WH is an all-position waste-haul tire available in size 315/80R22.5 with load range L. “We designed this tire specifically with the steer position in mind, since the life expectancy for many steer tires on sanitation trucks is often gauged in months, not miles,” said Gary