FeaturesJoker's upper handlebar riser clamp is an easy way to give your bike a racer lookReplaces your stock H-D Nightster's top clamp with the built-in "speedometer ring" mount - a perfect bar clamp solution when using Joker's speedo sidemount assemblyFully CNC machined racing-styled design is made from solid 6061-T6 bar stock for maximum strengthFit 1" diameter handlebarsFor models with 3-1/2" on-center and offset mounting holesFor use with most 99-17 Harley-Davidson models with 3-1/2" on-center risers and offset mounting holes and 86-19 XL modelsMade in the U.S.A.Specs Type: Handlebar Product Name: Clamp Type: Upper Clamping Area Diameter: 1" Riding Style: Street Units: Each Clamping Area Diameter: 25,4 mm (1") Clamping Area Diameter: 25.4 mm Material: 6061-T6 AluminumApproximate Package Weight & Dimensions Weight: 0.55 Height: 1.06 Length: 11.81 Width: 5.94