Fast and careless driving over bumpy roads or curbs may cause the wheel rims to deform, dent or even crack. A damaged rim will make you feel vibrations on the steering wheel and may even cause the car to steer off course. Steel rims may be straightened and, sometimes, even welded. In each case, however, it is an expert who should decide whether or not a rim is repairable. Steel rims are more vulnerable to damage than those made of aluminium.