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That doesn't look right to me.
The front upright and the rear upright both have a fitting in the bottom of the rail as you can see in the first link I gave above.

This photo just doesn't look like it was supposed to be this way but I haven't looked that closely at a Super Sport model before.

This is the photo that Harley sent me and it does show a standoff but not a rail base fitting.
Again, I do not believe this to be correct.