Renthal 7/8" Street Handlebars - Road High/Black 78" 22mm external diameter to fit most standard sized clamps and controls 7010 T6 Aluminum, which Renthal has exclusive rights to this specially developed alloy, for the manufacture of handlebars High impact strength, lightweight and excellent vibration dampening Shot peened surface finish to help prevent fatigue failure Knurling Grip end only increases bonding between bar and grip