Hey there - welcome to C'ville. There's a few inmates around and I are one. I do know a few loops in the area but they are all of the dual sport kind - do you do gravel on the Harley?
Every now and then we get togeather for dinner somewhere. Hasen't happened in a while so maybe we are due? Whenever it happens, it is announced in the southeast forum ahead of time. There's a bike night at Rivals (near PuttPutt) every so often, but it's tough guy/chopper/crusier crowd - I guess your Harley would fit in well if you are interested.
Some of the best fun pavement roads around are those that go up and over the Blue Ridge Parkway. Rt. 56 past Montebello to Vesuivs is my favorite.