You'd think that Mai Sai would be the sensible choice for a visa run from Chiang Rai but I chose Sadao ... and have just completed a 38 day 7600 km circumnavigation of Thailand on a 125cc Honda Dream scooter. It ran flawlessly ... from 40 plus degrees and wide open throttle on the highway to climbing mountain switchbacks in pouring rain. Avg distance / day ~ 380 kms Longest " / " ~ 640 kms (ouch) Rest days ~ about nine Avg speed ~ 85 -90 km / hr Avg economy ~ 90 mpg Maintenance ~ Replaced chain and sprockets @ 11,500 klms Punctures ~ nil Best rides ~ Burma border run from Mae Sariang and the eerily quiet roads Loei to Nan. Friendliest Locals ~ Ranong ... lots of smiles waves toots and hospitality extended in this part of the world. Average daily spent ~ 550 to 650 baht (accomodation 250 - 400 per night) Vive la Scooterista!