Biltwell HB-KSN-78-BK Keystone Non-Dimpled-Black-7/8 Handlebars These handlebars are constructed with seamless CNC mandrel Bent 0.120" wall 4130 chromyl tubes. Precision metering and TIG welding finish off the bars for beauty and strength. These bars look great on: 7/8-inch o.D. Size makes these bars perfect for practically any British or Japanese custom you can think of.