Cobra's standard Freeway Bars are ultra-shiny, 1-1/4" diameter chrome-plated, mild-steel for durablility. Carefully designed and constructed for a first-time, hassle-free fit. With larger 1-1/2" diameter steel tubing, Cobra's Fatty Bars are stronger, offering a greater level of protection for accidental drops. Because of their larger tubing, they present a greater proportional fit on the larger machines. The bars offer a wider range of fitments and are not limited to the super cruisers.