After I rode my 2010 F650GS a bit, the most obvious upgrade for me were bar risers. They eliminated all shoulder pain. They also changed the way the wind hit me, so I bought an Aero-flow tall offroad screen, which I'm not super happy with, but it's an improvement over the helmet noise I got from the stock windshield combined with my bar risers. I am now considering getting the OEM screen that is taller.