My suggestion is going to be left field. I have an 800 ST and most of my riding is two-up. This bike is light in weight and there is low seat option. The Pillion seat is very comfortable (according to the passenger and in comparison to being on the back of an 650GS). Just a thought and unlike a lot of beemer owners I appreciate modern technology not that I'm against the trusty old boxer engine. The clam-shell panniers actually hold just a much as the panniers on my old GS.Norm