Xpeed D-Series 6ft Olympic BarbellD Series 6ft Olympic Barbell The D Series 6ft Olympic Barbell is the ideal bar to master your technique in a gym, studio or home setup. Overall this barbell is not designed for Olympic lifting or to be dropped during use. Some of the leading features of this beginner barbell is the controlled rotation coupled with the coarser knurling. As a result, a unique feel and a firm grip on the bar is provided. For heavier lifts you can add the X Series or P