Feature: The Series Modular Risers are designed for high performance, good looks, and ease of installation. Come with extended mounting hardware, Different Bolts for different heights, you don't need to buy anything else. Pre-drilled for internal wiring Fit for Harley models with standard 3.5" on-center mounting Specifications: Type: Straight Rise Style Rise Height: 4",6",8",10",12" and 14" rise available Clamping Diameter: 1" (Available for 1″ Stock diameter handlebars.) Fitment: Fit for Harley most Dyna / Street bob / Sportster / Softail '18-later FLFB, FLFBS, FLSL, FXBB, FXBR, FXBRS, FXDRS, FXFB, FXFBS, FXLR, FXLRS, FXLRST and '14-later Road King® models (Note: for 883L/X48 model you may need to change the Upper Clamp).