Chrome plated. TUV approved. With 2" (5.1cm) pullback. For 1" (25.4mm) handlebars. Constructed from investment cast steel upper & threaded lower. Riser tubes are TIG welded seamless 4130 chromoly with 3mm thick tubing and 1/2-13 threaded mounting holes which will take stock riser bolts. Spacing is 3-1/2" (89mm), to fit most H-D top triple trees. The top clamp bolt pattern will take stock H-D speedo & tach brackets.