Replaces conventional risers to allow for use of handlebars with narrower clamping area Overall handlebar clamping width 2-1/2" Designed specifically for RSD Narrow handlebar line but, also fits standard handlebars (knurling may be exposed) Direct bolt-on to most models with removable risers and 3-1/2" on-center pattern Drilled and tapped for 1/2" -13 mounting bolts Pinch bolts included For use on bars with 1-1/4" clamping area