The Flip Axle is a complete axle assembly frame attached to the rear frame by hinge plates and pins. The Flip Axle is used when the trailer's axle loading exceeds the gross weight that a given state will allow on each axle. Otherwise, the Flip Axle can be flipped up onto the rear frame, or removed, to reduce the number of axles. All ROGERS removable axles are on air ride suspensions. The Flip Axle connects to the trailer's leveling valve if the flip axle is to be used with an air ride trailer; or comes with a hand control valve if the flip axle is used on a trailer with a mechanical suspension.