There are lots of motorcycles in Thailand. Most of them are of the variety which we would call a moped or a scooter. They have small engines, between 100cc and 125cc in general, and they cost somewhere in the neighborhood of US $1000-$1300. They are easy to drive, easy to park and they are very maneuverable. And surprisingly they can carry quite a lot of weight despite their small size.
The Thais have been quite ingenious in coming up with lots of methods to use them. I have identified 8 methods how I have seen them used, but this list is by no means exhaustive.