Attitude Inc handle bar risers kits are constructed from machined aluminium. These riser kits give your bike a custom style look along with the versatility of a traditional riser and handlebar combination. Features: For Harley models with 1" (at the centre) handlebars Drilled and tapped for 1/2" riser bolts (bolts sold separately) Designed to fit applications with 3-1/2" on-center mounts and will accept most OEM-style top clamps with offset mount holes