 Steel frames generally are easier to repair than aluminium or exotic materials, and for this reason steel frames are preferred by many bicycle tourists, who often ride long distances in remote areas.Lugs also reinforce the joints, often resulting in a stronger frame, this gives lugged frames in particular an advantage for touring cyclists.Traditional stamped lugs (aka pressed lugs) are formed by pressing sheet steel over a mandrel, bending them to shape, and then welding the seams.