Curves 1,864+ Officially counted. Unofficially, it feels like more.
Max Elevation ~1,500 m Noticeably cooler than the lowlands.
Starting Point Chiang Mai Most riders begin and end here.

Why This Route Is Different

Most people come to Thailand expecting beaches, heat, and busy streets. Northern Thailand — and the Mae Hong Son Loop in particular — is something else entirely. The air up in those mountains is the cleanest I've encountered anywhere in Asia. In the early morning, when the sun starts burning off the dew from the tropical plants along the road, the smell is unlike anything I can properly describe. You have to ride through it yourself.

The climate has a Mediterranean quality that surprises most visitors. Yes, it still gets warm — above 30°C at lower elevations — but in the higher passes you'll feel a genuine coolness, and the landscape shifts from jungle to mountain scenery that doesn't look like the Thailand of the travel brochures at all. That contrast is what drew me to this route in the first place, and it's what keeps bringing riders back.

"The air in those mountains is the cleanest I've encountered anywhere in Asia. You have to ride through it yourself to understand."

The Route: Stop by Stop

The Loop starts and ends in Chiang Mai. Most riders do it clockwise — south via Hot, then up to Mae Sariang, north to Mae Hong Son, and back via Pai. Here are the stops that actually matter:

Mae Aw: The Hidden Village You Must Visit

If there's one thing I'd tell every rider planning this loop, it's this: don't skip Mae Aw. Most people don't even know it exists. It's a short detour from Mae Hong Son — a mountain village right on the Myanmar border, originally settled by Chinese Nationalist (Kuomintang) soldiers and their families who fled across the border after 1949. They never left.

The result is a village that feels completely out of place in Thailand. The architecture is Chinese. The food is Chinese. The tea is excellent. And because of the altitude, it's genuinely cool up there — not Thailand-cool, but properly cold by northern standards. Pack a layer you're actually willing to wear, not just the one strapped to the back of your bike.

💡 Insider Tip

Mae Aw sits on a reservoir with views straight into Myanmar. Go in the morning if you can — the mist over the water is something else. There are small guesthouses if you want to stay overnight, but they fill up in high season.

Two Stories That Tell You Everything About This Route

The Snake on the Road

I was riding one of the quieter stretches between Mae Sariang and Mae Hong Son when I had to brake hard and stop completely. Not because of traffic — because a large snake was crossing the road. Slowly, completely unbothered, taking its time. It looked at me. I looked at it. I waited. It finished crossing and disappeared into the jungle. I sat there for a moment before I started riding again. That's the Mae Hong Son Loop. You are a guest in that landscape, not the other way around.

The Puncture, the Pickup, and the Beers

A flat tyre, somewhere in the middle of nothing. No phone signal, no shop in sight, no plan. Then a pickup truck came past, slowed down, and stopped. The driver didn't speak any English. I didn't speak much Thai. We managed with hands and gestures. He loaded up the bike and drove me to what looked from the outside like a small farmstead — completely unremarkable. Inside, a group of his friends were sitting around with beers. He explained the situation somehow. Twenty minutes later, the tyre was fixed. They refused any money. Someone handed me a beer. That kind of hospitality — completely spontaneous, completely genuine — is something you will not find everywhere. But on the Mae Hong Son Loop, it seems to just be how people are.

Who Should Not Ride This Route

⚠ Honest Warning

This is not a beginner route. The combination of thousands of curves, significant elevation changes, temperature variation, and sections of road where you won't see another vehicle for 30 minutes makes it genuinely demanding. Every season there are riders on this loop who are simply not ready for it — and they become a hazard for everyone else. If you don't have real riding experience on mountain roads, build that experience first. There is no shame in that. The loop will still be here.

Specifically: if you've never ridden mountain switchbacks, if you're renting a bike for the first time in Thailand, or if you're not comfortable riding for 5–7 hours in a day with changing conditions — this is not your first ride. Do the shorter routes around Chiang Mai first. Get your confidence, then come back for this one.

Practical Info: What You Actually Need

Gear

Bring layers you can actually access without stopping for 20 minutes. At the lower elevations you'll be warm. In the high passes and at Mae Aw, you'll want a proper jacket. Waterproof gear is worth carrying even in the dry season — weather in the mountains changes fast. Good gloves. A full-face helmet if you value your face.

Fuel

PTT 91 is widely available and fine for most bikes. Fill up whenever you see a proper station — don't assume the next town will have one. Avoid the roadside petrol bottles in the north if you can. Between Mae Sariang and Mae Hong Son there are stretches where you won't find fuel for a while — plan accordingly.

Best Time to Go

November to February is the window. Cool temperatures, clear skies, good visibility in the mountains. March to May brings haze from burning season — the views suffer badly. June to October is rainy season: the roads can be beautiful, dramatic even, but conditions are unpredictable and some mountain sections become genuinely slippery. If you're experienced and prepared, riding the loop in light rain is actually spectacular. If you're not — wait for the dry season.

Insurance

Sort this before you leave Chiang Mai, not after. Most rental shop insurance is minimal at best. SafetyWing and WorldNomads both cover motorcycle riding in Thailand — but read the fine print on engine size. If you're on a 250cc or above, confirm that your policy specifically covers it. I've seen riders end up with hospital bills that wiped out their entire travel budget because they assumed they were covered.

Want the Full Route PDF?

GPS waypoints, accommodation recommendations, emergency contacts, fuel stop map — everything in one document you can take offline.

Download the Mae Hong Son Handbook →