Lightweight & strong 7075 aluminium road racing drop 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 For further rigidity the 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 Anatomic handlebar design gives a comfortable choice of handlebar positions Dual recessed groove cable routing Weight from 285 grams