Here's the taillight kit; mount assembly, backer plate and tail/brake light.
And here's how you can configure it. The backer plate will mount vertically or horizontally. This taillight unit fits any bike with dual shocks. It bolts to the upper right shock mount stud/bolt and hangs aft of the shock. DOT approved taillight/brake light. Mounting (on one side) is not DOT approved. If you would like a chrome beauty frame for the license plate add $10 bucks.