To suit super glide , cheers jungle 

Not sure what year you’re after or what fits what.. but I’m about to pull this sissy bar off my 2015 wideglide.

Aftermarket or factory?  You can still buy these from Harley I think.

The bikes a 1985 low rider        

So you need one like the pick in my photo.  Its a standard thing that I suspect you can still get from Harley, or better still make your own.  You need the side plates, sissy bar and the back pad for the sissy bar.  Truckload of parts on JP Cycles site.   

Thanks tussuck, i think I’ll be making my own