THE LOOP AT A GLANCE
- Distance
- ~600 km classic · ~680 km via Mae Chaem · ~800 km with the detours
- Days
- 4 is the honest minimum · 5 is better
- Roads
- 107, 1095, 108 — sealed the whole way
- Towns
- Pai · Soppong · Mae Hong Son · Khun Yuam · Mae Sariang
- Widest fuel gap
- Mae Sariang → Hot, ~100 km
- Best months
- Mid-November to mid-February
- Worst months
- March (haze) · August–September (rain, landslides)
- Difficulty
- Not technical. Long. The difference matters.
- Highest point
- Doi Inthanon summit road, 2,565 m — if you add it
- Ride each day by
- Daylight only. No exceptions on this loop.
THE ROUTE, LEG BY LEG
It is a circle, so there is no wrong place to start — but the legs below are the shape of it, listed the way most people ride it, Pai first.
| Leg | Road | Distance | Character |
|---|---|---|---|
| Chiang Mai → Pai | 107 → 1095 | 135 km | The tightest road on the loop |
| Pai → Mae Hong Son | 1095 | 107 km | Via Soppong — the steepest sequence |
| Mae Hong Son → Khun Yuam | 108 | 70 km | Serpentine, quiet |
| Khun Yuam → Mae Sariang | 108 | 92 km | Open, fast, empty |
| Mae Sariang → Chiang Mai | 108 via Hot | 190 km | The long way home |
One correction worth having, because it appears on a very well-read page and it is the leg you least want to be wrong about: Mae Hong Son to Mae Sariang is not 85 km. It is about 162 km, and the run beyond it to Hot is the thinnest stretch for fuel on the loop. Plan the day on the right number.
HOW FAR IS IT, REALLY?
You will see 600 km, 680 km, 713 km and 800 km quoted for the same ride, and it makes the whole thing feel unknowable. It is simpler than it looks. They are different routes.
- ~600 km— the bare loop, coming home on Route 108 through Hot. This is what “the Mae Hong Son Loop” means when someone says it without qualification.
- ~680 km— the same loop, returning the long way through Mae Chaem and around Doi Inthanon instead of straight down the 108.
- ~800 km— the loop plus the detours everybody actually takes: Ban Rak Thai, Mae Surin, and the summit road up Doi Inthanon, which alone is 48 km each way.
For what it is worth, the version we run measures 713 km, because it takes in both the Inthanon summit and Ban Rak Thai. That is our itinerary, not the standard figure — if you are planning your own, work from 600 and add your detours.
ABOUT THOSE 1,864 CURVES
It is the most repeated number in Northern Thailand and it is almost always used wrongly. The 1,864 belongs to Route 108— the Chiang Mai–Mae Sariang–Mae Hong Son highway — not to the loop as a whole. The 762 you see quoted separately is the Chiang Mai to Pai road.
Both started life as tourism slogans rather than surveys. Nobody has ever published what counts as a curve, which is why other versions of the number float around between one and four thousand depending on who is adding what.
None of which spoils anything. Ride it and you will not be counting. But it is the kind of detail that tells you whether the rest of a page was written by someone who has been there.
WHICH WAY ROUND?
Almost everyone sends you to Pai first, and there is nothing wrong with that. We do it the other way.
Route 108 out of Chiang Mai is the famous 1,864 — long, open, sweeping corners you can settle into. The hard 762 are on Route 1095 through Pai: tighter, busier, more traffic, and the road where most of the trouble on this loop happens. Riding clockwise puts that stretch on your last day instead of your first. By day three the corners have stopped being a problem and started being the point.
Going the usual way is not a mistake. Just know that the Pai road is the hardest part of the loop, and decide whether you would rather meet it fresh or meet it practised.
THE FUEL GAPS THAT MATTER
Every town on the loop has fuel — Chiang Mai, Mae Malai, Pai, Soppong, Mae Hong Son, Khun Yuam, Mae La Noi, Mae Sariang, Hot, Chom Thong. The trouble is never finding a station. It is the four stretches where there isn’t one.
Mae Sariang → Hot
~100 km
The widest gap on the whole loop. Roadside bottle sellers only.
Soppong → Mae Hong Son
~66 km
The longest on the northern leg.
Doi Inthanon summit road
48 km each way
No fuel at all on the climb.
Past Mae Hong Son toward Ban Rak Thai
—
Nothing past town. Fill before you turn off.
One thing worth knowing that no map will tell you: in March 2026 the stations in Pai and Pang Mapha ran dry, and it spread as far as Khun Yuam and Mae Sariang. Thousands of travellers were stuck for days. It is not a normal occurrence — but it is the reason we treat “top up in every town” as a rule rather than advice.
HOW MANY DAYS?
Three days is possible and it is a schedule, not a trip. You will ride well over 200 km a day on mountain roads and arrive everywhere just as the light goes.
Four daysis the honest minimum and how the loop is usually ridden. Roughly 150–190 km a day, which sounds like nothing until you remember that mountain kilometres take about twice as long as flat ones.
Five daysis where it turns into a holiday. A morning in Pai instead of a coffee stop, Ban Rak Thai without rushing, an afternoon that isn’t spoken for.
WHERE YOU SLEEP
Prices below are the realistic 2026 range for a room, not the cheapest thing on the internet.
| Town | Nightly | Worth knowing |
|---|---|---|
| Pai | ฿300–600 budget · ฿800–2,000 mid | Book ahead for December and January. |
| Mae Hong Son | ฿400–1,300 | Plenty of choice outside festival weeks. |
| Khun Yuam | ฿600–900 | Very few rooms in town. Book ahead in any month if you are a group. |
| Mae Sariang | ฿370–950 | The safest same-day bet on the loop. |
| Ban Rak Thai | Limited | The real bottleneck — often full months in advance. |
WHEN TO RIDE IT
Mid-November to mid-February — ride it. Dry, cool, clear. November is the pick of them: the rain has finished, everything is still green, and December’s crowds have not arrived. Expect genuine cold at altitude in the mornings.
March — don’t. Burning season peaks, and Mae Hong Son sits in a valley that holds the smoke. Chiang Mai has ranked among the most polluted cities in the world in March, and Mae Hong Son measures worse. The road is fine. You just will not see the mountains you came for, and you will be breathing it for four days.
Songkran, 13–15 April — not on a bike. Thailand’s heaviest road-travel week, water thrown at passing riders, and the tail of the haze. Wonderful festival. Wrong week to be on this loop.
June to October — wet, green, and worth checking the news first. The riding is good and the tourists thin out. But this is the window when landslides and bridge damage happen up here — a bridge on Route 1095 near Mae Hong Son was lost to flash flooding in August 2026 and again in August 2024, in much the same place, and the Khun Yuam–Mae Hong Son stretch of the 108 has taken rockfall more than once. Both were repaired and reopened. In the rainy months, check before you go: the Department of Highways hotline is 1586, and the Mae Hong Son highway office is 053-684-104. Outside the rainy season this is a non-issue.
WHAT ACTUALLY HURTS PEOPLE
Not the corners. It is the same short list every time, and none of it is about skill.
- Gravel on a blind bend, and the front brake. The classic crash on this loop is grabbing the front brake mid-corner on a surface you could not see coming. Brake early, look through, roll on.
- Riding after dark. Unlit roads, no reflective markings, animals on the carriageway. There is no version of this loop that is improved by riding at night.
- Dogs. Sound the horn, hold your line. More riders are hurt swerving off the road than by the animal.
- Exhaust burns. The most common injury on this whole route, and it happens standing still. Long trousers, and mind your calf getting off.
- The traffic around Pai. The busiest and least predictable stretch on the loop — heavy trucks on the climbs, and a lot of people on rented scooters for the first time in their lives. Hospital records from Pai district logged several thousand road accidents over 2014–2017, most involving foreign visitors. That data is old and no newer equivalent is published, but nothing about the road has changed to make it out of date.
- Tiredness in the last hour. Long days plus fading light plus the twistiest section is how good riders come unstuck. Start early, finish early.
WHAT TO DO WITH YOUR LUGGAGE
This is one of the most-asked questions about the loop and one of the least-answered, so here it is plainly.
Leave the big bag behind. You are coming back to Chiang Mai; almost every rental shop and operator here, ourselves included, will store a suitcase while you ride. Four days of riding needs far less than four days of travelling.
If it comes, put it on the bike, not on you. A large rucksack worn on your shoulders raises your centre of gravity, changes how the bike settles into a corner, and turns into genuine fatigue by the afternoon of day two. Strapped down over the seat or a rack, the same weight is barely noticeable.
What you actually need: a change of clothes, something warm for the mornings, something waterproof, your documents, a charger. The towns on this loop all have shops.
ARE YOU READY FOR IT?
The Mae Hong Son Loop is not technically difficult. It is long. That is a different problem, and it is the one people underestimate: four days of concentration, not four days of corners you cannot manage.
So the honest answer to “am I good enough?” is a question back: have you ridden a mountain road before? If not, this is not the place to find out over four days and 600 km. Ride the Samoeng Loop first. It is one day, it is gentle, and it will tell you honestly what you are ready for. Then come back to this one.
WITH A GUIDE
Four days, the bike, the beds, and someone who knows which corner is wet at eight in the morning.
ON YOUR OWN
Your ride, your pace — with a route sheet and a number that answers when you are four hours from anywhere.
ON THE BACK
You do not have to ride to see this road. No licence, no experience, same four days.
MAE HONG SON LOOP FAQ
How long is the Mae Hong Son Loop?
About 600 km for the classic circuit — Chiang Mai to Pai, Mae Hong Son, Khun Yuam, Mae Sariang and back down Route 108. Around 680 km if you return the long way through Mae Chaem and around Doi Inthanon. Add the usual detours — Ban Rak Thai, the Doi Inthanon summit road — and you are closer to 800 km.
How many days do you need for the Mae Hong Son Loop?
Four days is the honest minimum and the way most people ride it. Three is possible and means long days with the scenery going past rather than being looked at. Five turns it into a holiday instead of a schedule.
Are there really 1,864 curves on the Mae Hong Son Loop?
Not on the loop — on Route 108. That number is a long-standing tourism slogan for the Chiang Mai–Mae Sariang–Mae Hong Son highway, not a survey of the whole circuit, and no counting method was ever published. The 762 you see quoted is the Chiang Mai–Pai road. Both are folklore, and both are the good kind: nobody rides this loop and feels short-changed on corners.
Where are the fuel gaps on the Mae Hong Son Loop?
The widest is Mae Sariang to Hot, roughly 100 km with nothing dependable in between. Soppong to Mae Hong Son is about 66 km. The Doi Inthanon summit road is 48 km of climbing with no fuel at all, and there is nothing past Mae Hong Son on the Ban Rak Thai spur. Fill up in every town and the problem does not exist.
Which direction should I ride the Mae Hong Son Loop?
Most guides send you to Pai first. We run it the other way — Route 108 out of Chiang Mai, coming home through Pai on the last day — because the tightest, busiest road on the loop is the Pai stretch, and it is easier when you have had three days back in the saddle. Either direction works. Neither is 'correct'.
When is the best time to ride the Mae Hong Son Loop?
Mid-November to mid-February. November is the pick: the rain has finished, the hills are still green and the crowds have not arrived. Avoid March — that is the worst of the burning season and Mae Hong Son sits in a valley that holds the smoke. August and September are the wettest months and the ones when landslides and bridge damage happen.
What do I do with my luggage on the Mae Hong Son Loop?
Take less than you think and leave the rest in Chiang Mai — most rental shops and tour operators, ourselves included, will store a suitcase for the trip. A big backpack worn on your shoulders changes how the bike behaves and wears you out on day two. If it has to come, strap it to the bike rather than to yourself.
Can I do the Mae Hong Son Loop as a passenger if I don't ride?
Yes. It is one of the most common questions asked about this route and one almost nobody answers, because a rental shop can only rent you a bike. You can ride the whole loop pillion — no licence, no experience needed — and see exactly the same road.
Is the Mae Hong Son Loop dangerous?
It is a mountain road in Thailand, so it deserves respect rather than fear. The things that actually hurt people here are gravel on blind bends, grabbing the front brake mid-corner, riding after dark, and being tired on the last hour of a long day. None of those are about the road being difficult. All of them are about pace and timing.
Distances cross-checked against Department of Highways figures and our own GPS. Accommodation prices are 2026 ranges and move with the season. Accident statistics are dated where they are dated. Licence and insurance detail on our Before You Ride page.