The ASC2500ROS is our most popular non-steer auxiliary lift axle. It has proven itself to be the most durable suspension available for many applications. The ASC2500ROS has a 25,000 lb capacity. With several axle beam and wheel mounting options to choose from, including 71.5 inch and 77.5 inch wheel tracks, you will be sure to find a combination that will fit your needs. Axle beam options include straight axle and 6 or 9 inch drop center axles. The suspension is designed to accommodate many frame widths and frame heights. The ASC2500ROS uses a unique hanger design that allows for greater free frame space.