Interesting, I ran into a guy at a Laconia NH Rally back around 2004 who said he had filed a patent for a golf bag carrier for a MC.
I never saw them advertised but I wonder if it was made by the same guy.
I personally have backpack type straps on my bag with a snap-on club cover and just throw it on and rest it on the back of my seat.
It's fine as long as you keep it below 60 MPH or else it gets a little squirrely...
The snobbier courses don't appreciate seeing me pull up or leaving on a loud bike carrying my clubs but F'em, my money's green.
The trailer hitch I just put on my bike is a bit overkill for the bag but it would make for a nice looking solid base if someone couldn't find the mounting
bracket designed for it.
US$362 for chrome hitch and chrome braces.
Triumph Rocket III
Or fabricate one based on this simple design!!