Renthal Fatbar 1-1/8" Oversized Handlebars - RC High/Black 1 18 28.6mm large diameter clamping area Tapered wall construction to 78 22.2mm allows fitment of standard grips and controls Braceless design 7010 T6 Aluminium. Renthal has exclusive rights to this specifically developed alloy, for the manufacture of handlebars Shot peened surface finish to help prevent fatigue failure