Mae Hong Son Loop

For the experienced motorcyclist — and be sure to also read what is written elsewhere on this site about traffic and riding a scooter — there is a popular route called the Mae Hong Son Loop. Over the course of 3 or 4 days, you ride towards Myanmar, passing through Mae Hong Son and Pai, optionally also via Doi Inthanon, the highest mountain in Thailand. The Mae Hong Son Loop offers lots of mountains, forests, and plenty of curves. But the asphalt quality is like a smooth skating rink.
You can make a detour to the very touristy Ban Rak Thai, which lies near the Myanmar border. Friendly border guards there might even let you set foot on Burmese soil for a moment...

Google “Mae Hong Son Loop” and you’ll find many webpages with more info. We like this one: https://www.travelvalley.nl/natuur/mae-hong-son-loop-maak-de-mooiste-roadtrip-door-thailand