Ridewell has released the RAR-260, a trailer air-ride available in overslung and underslung configurations for both 25,000- and 30,000-lb. capacities. It's manufactured with Securelok pivot nuts for pivot clamping force.
Additional features include Tenneco multi-functional bushing, integrated shock absorber mounting, pivot bolts requiring only 500 lbs.-ft. of torque, axle alignment adjustment capability of plus/minus 0.25 in. at hanger, and mounting heights from 14 to 18 in. for overslung and 5.5 to 9 in. for underslung.