Premium steer axle for regional/highway service. Wide 5 rib design delivers long mileage and resistance to shoulder wear. Durability and high performance under the toughest regional haul and in-city conditions are the hallmarks of the RY023. This sure-footed, five-rib, all-position workhorse features a tough band of additional rubber that protects the sidewall from scrubbing damage caused by curbing and other regional haul and in-city application abuses.