I've been reading a lot of motorcycle travel books over the past few years. Mostly books about long distance travel, like Ted Simon. Anyway, I came across a book called Around the World on a Motorcycle 1928-1936. I highly recommend it. It's fascinating. 170,000 kilometers over 8 years on a 1922/23 Harley J model with sidecar before most of the world had roads made for any motorized vehicle. Author is Zoltan Sulkowsky.