I would like to see the list of suspension upgrades. If you look into the aftermarket work of a gold wing you will find that there isnt alot out there for peformance.
There is no point in it. It is by far one of the best motorcycles built. I am willing to bet that bike is bone stock other than a little fine tuning.
In Japan they are choping the back ends of them up and equiping them fold up racks and using them as tow vehicals.
YouTube - Japanese Tow Trucks
A little fun trivia for you. Yellow Wolf is the only person to have a Iron but award for doing the same roads back and forth. Thats right kids, he did Deals gap repetivily and got over 1000 miles in 24 hours. He argued with them but ultimitly got his way. The rules state in the IBA handbook that the trip must be a round trip and not a down in back across the same roads.
Also, Yellow wolf is no longer on the yellow machine anymore, This past winter he got himself on one of the rust colored wings. They called him Burnt Wolf on the captions. It was the Killboy Highlights page.
Oh and another fun fact.
The same motor that is in the goldwing is also in the Valkyrie. Those engines are so smooth that you can ballance a nickel on the valve cover of the engine. Fire it up and rev the piss out of the engine and the nickel will wont fall untill close to red line. It is a huge selling tool for the motorcycles.
YouTube - Nickel Trick