Biz BarVerde Biz bars are built high and wide for varied terrain. Biz mainly rides schoolyards, ditches, and street. His riding demands a strong, but lightweight bar. Biz bars are constructed from 4130 chromoly and feature multiple butted tubing. This makes them thicker and stronger in areas you need it most, such as the bends and clamping area. After welding, they are heat-treated to provide you the ultimate in strength and durability.