Mark Cavendish Vibe Sprint handlebar, for oversized 31.8 mm clamp diameter 7075 aluminium is a high strength aluminium alloy commonly used in the aircraft industry making it the ideal choice to produce this lightweight, strong & rigid handlebar Oversized 31.8 mm clamp diameter reduces unwanted flex under high load by increasing strength & rigidity 31.8 mm diameter is carried across the top of the bar, keeping the strength where it is needed & reducing the wall thickness where vital grams can be saved For further rigidity there are 4 reinforcement splines across the top centre section Anatomic handlebar design gives a comfortable choice of handlebar positions Dual recessed groove cable routing Weight from 290 grams