I have completed six motorcycle tours in Thailand and whilst by no means am an expert I have enjoyed riding many of the top rated motorcycle roads with thanks to advice from couple of local ex pats.
I marked some of the better roads on a map just for my own trip planning purposes but now think this might be something other riders going there could find helpful.
There is far more good riding roads than the ones I have chosen to mark, it is no exaggeration to say every 2nd road in the north could be considered a fun ride in any other country. However because there are some monumentally good riding roads I focused on marking the ones I found very good.
The southern roads marked out are as suggested to me by a chap when I was last riding here recently.
Update: My ride report from 2019 is also a guide to how to ride Thailand with lots of info and tips out together from my five tours there. You can read that here.
I added some photos below of a few of the roads and you can read my ride reports there in 2017 – 2015 – 2014 – 2013 to see more about the terrific riding experience there. (also 2018 report with guide on riding here)
The most famous 1148 The amazing 1081 north of Nan The incredible route 12 Autumn like colour leaves on 1168 High mountain pass 1256 The incredible 108 and the MHS loop Even non famous roads are curvy, the 118 The 120 The 1251 And so on it goes!