I had the privilege of attending the r65 LS/r80 GS 40th anniversary rally in Harlesville Pennsylvania this weekend. The designer of these (and many other bikes), Hans Muth was the featured speaker. As a special treat he and George Martin (owner of the largest BMW Motoradd dealership in Germany) unveiled their latest creation. The "r800 GS based on an r 65 motor (see photo). It consists of a r 80 GS fork and frame, r65 motor, r65 sub frame and purpose made seat, tank pads and side covers.
It also saw the opening of the organizers "Bavarian Bike Barn". A great tie was had by all!!
FWIW