Great trip and report so far.
I'm guessing you have non O ring chains on the bikes since they are stretching so much.
Although your tiny bikes make for great adventure and a great report, I don't think I could handle all the traffic whizzing by me. I have a 150cc scooter that is just a little faster than the Symbas and I don't like taking it on 2 lane roads where I can't at least cruise at the speed limit. When you get overseas I imagine the Symbas will be perfect for the lower speeds found in many countries.
Any regrets so far at your choice of bikes?
Thanks for putting so much effort in doing a detailed writeup so far. I'm looking forward to the rest.
I ride, Therefore I Am.