I'm planning a 2 -3 week bike tour of northern Thailand. The rough plan is to start in Chiang Mai and do the Samsung loop, Mae Hong Son loop, checkout Pai, Chiang Rai and Nan. Not really interested in hardcore jungle tracks, but the odd high speed dirt trail would be great. I'm really looking forward to seeing Pai, Mae Hong Son and Nam. What are the other notable towns to visit in this area? Maybe some cool must see wilderness areas, accomodation, interesting bars, cool riverside places or areas? What are the must do roads? My next trips will likely be other areas of S.E.A/Thailand and I don't want to miss any great towns in this area.