Thai is a spectacular route! Just one warning: there is a section in the second “phase” (the plateau) that goes through private land with a gate that you have to climb over. It is a five-mile stretch. If you do it around any rain (as I did yesterday), a few of those miles will be on a kind of mud that could seize the wheels. I must have cleaned out my front and rear wheels 20 times. I know I should have ridden earlier, so just take this as a friendly warning/reminder!