Not the first or the last person to do this, but I just rode every certified path in South Korea on a Brompton carrying only 7kg. (Lots of laundry in hotel sinks)
With four gears I suffered a bit in the mountains. Two things I’ll mention:
-It’s really nice to be able to fold up and get on the train.
-Never go into a hotel lobby with your bike unfolded. My friends did this and they were forced to use the bike room.
CHPT3 ~ first half
Tline ~ second half
VeloSambas
Continental Contacts (no flats)
by obyrned