Did you that an out of
balance tire can cause adverse effects to ride quality; shorten the life of
your tires, wheel bearings, shocks& struts as well as other suspension
& steering components. If you have a vibration that usually becomes
noticeable between 45-60 mph it’s probably balance related. The other primary
cause of vibrations is that the tire and wheel assembly isn't perfectly round.
During the tire and wheel manufacturing process slight imperfections in the
tire and wheel cause high and low spots to develop, nothing is perfectly round.