Olympic Barbell: A special type of barbell used in weight -
lifting and power - lifting competitions, but also used by
bodybuilders in heavy basic exercises such as bench press, squat
and deadlifting (the three basic powerlifting movements, which can
also be incorporated into bodybuilding). Each bar weighs 45 lbs (20
kg). The collars used in powerlifting and weightlifting weigh 5.5
lbs (2.5 kg). Collars at your gym may vary in weight, however.