What about a folder with a coupled rangefinder like a Super Ikonta III for that larger format look? Obviously a bit late now, but get it serviced and it should be very dependable. .
Thanks for the suggestion. I've used folders on motorcycle trips before (I have a couple Ikontas with Tessar lenses, and one of the older Mamiya six folders), but they're just not versatile enough for this trip. One lens and slow workflow work okay for certain landscapes, but not so much as a walk around camera, or those wide perspectives that I sometimes need. Also not as efficient with film, and the lenses aren't very fast. I think the best lens available for the Ikonta is a Tessar which is a fine lens, but with good Leica glass I've always been able to get better or just as good quality photographs despite the smaller format. A quality photograph isn't just resolution anyway. I've had too many missed opportunities with a folder as a primary camera.
Might be okay as a second camera, but I truly do not have room for a second camera and the appurtenances to go with it. I'm already purging things from my bags to keep things manageable. It's a lot more complicated to do a fly and motorcycle ride than fly and rent a car or take a tour. Full riding gear consisting of helmet, armored and weather protective clothing, boots, clothing layers to stay warm between 35 and 85 degrees while riding all day, camping gear, and it all has to fit on a rental motorcycle that's not a weighed down pig.