This ergonomic and strong aluminium bar gives a comfortable and smooth transition from the top to the hoods and drops2014 premium butted aluminium, high-strength design,Ergonomic top perch alleviates pressure on hands; smooth transitions for fit & comfort,Shallow bend drop design improves comfort and manoeuvrability for all hand sizes,Front of the bar optimised for dual cable routing,Compatible with Shimano, Campagnolo, or SRAM,Clamp diameter: oversized 31.8mm,Bar width (centre-to-centre): 40/42/44cm,Shallow bend drop: 123mm drop x 75mm reach.