Material:6061 aluminum for strength and rigidity,Bar end outer diameter:23.6mm; Fit Clamp diameter(middle of the handlebar) : 25.4mm.Handlebar width:390mm/15.35inch; Shaped to provide numerous hand positions for speed and comfort. Bullhorn handlebar for road bike,fixie bike (fixed gear bike),messenger style bike. Package included:1 X Bike Handlebar. Specifications Material:Aluminum Alloy Use:Especially for fixed gear bike Clamp diameter:25.4mm Handlebar Width:390mm/15.35inch Type:Bullhorn Bar Color:black Package included: 1 X Bike Handlebar