The Mae Hong Son Loop: Motorcycle Route Guide

Northern Thailand's Mae Hong Son Loop is the road that turns people into repeat visitors. Roughly 600 kilometres in a rough circle west of Chiang Mai on Highways 108 and 1095, it strings together mountain passes, hill-tribe villages, hot springs, a Burmese-influenced border town and the most relentlessly corner-heavy tarmac in Southeast Asia. The number everyone quotes — 1,864 curves — is signposted, celebrated on t-shirts, and slightly beside the point. What matters is that the corners keep coming for four days.

This guide breaks the loop into its four natural sections, covers when to ride it, what to ride it on, and which guided options run it. For the wider picture, see our Thailand motorcycle tours hub.

The shape of the loop

From Chiang Mai you have a choice of direction, and it genuinely matters. Ridden clockwise you take Highway 1095 north through Pai first, then run down the western side on 108 through Mae Sariang. Anticlockwise reverses it. Most riders go clockwise, getting the busiest and most famous section done early; going the other way puts the quietest riding first and saves Pai for when you have your eye in.

Highway 1095 alone covers 245 kilometres from Chiang Mai province to Mae Hong Son, and it was originally built by the Japanese army during the Second World War, which explains a routing that seems to prefer ridgelines over valleys. The Chiang Mai to Pai section is credited with 762 bends on its own.

Chiang Mai to Pai (Highway 1095)

Around 130 kilometres and the single most famous stretch of motorcycle road in Thailand. It climbs out of the Mae Taeng valley into forest and then simply does not stop turning — tight, second- and third-gear corners stacked on each other, with occasional straights just long enough to relax before the next sequence. Pai at the end is a small backpacker town in a wide valley, and its main use to a rider is a night's sleep and a hot spring.

Traffic is the caveat. Minibuses run this road all day and take their share of the road on blind corners. Ride it early.

Pai to Mae Hong Son (Highway 1095)

Quieter, wilder and, for a lot of riders, better. The road climbs through Pang Mapha with its cave systems, passes the Lod Cave turn-off, and runs along ridges with genuine views before descending into Mae Hong Son. Around 110 kilometres, but budget most of a day — the corners are slower and the stops are worth making.

Mae Hong Son to Mae Sariang (Highway 108)

This is where the loop earns the 1,864-curve reputation, and it is the section where the number is usually credited. Highway 108 runs south close to the Myanmar border through Khun Yuam, alternating long forested descents with climbs back onto ridgelines. Traffic thins to almost nothing. Around 160 kilometres and the most consistently rewarding riding on the circuit.

Mae Sariang back to Chiang Mai (Highway 108)

The fastest leg, roughly 190 kilometres, following the Ping and Chaem valleys back east. It is more open and quicker than the rest, which suits a final day. The obvious detour is north through Mae Chaem to Doi Inthanon, at 2,565 metres the highest point in Thailand, adding a superb climb and a genuinely cold summit to the last afternoon. A one-day version of that climb exists as a standalone ride: the Doi Inthanon day tour.

How many days

DaysShapeSuits 2Chiang Mai–Pai–Mae Hong Son–Chiang Mai, long daysRiders with a schedule and no interest in stopping 4One overnight each in Pai, Mae Hong Son and Mae SariangThe standard, and the right answer for most 6–8Adds Doi Inthanon, Mae Chaem, Khun Yuam side roads and a rest dayAnyone who came for the riding rather than the checklist

Two days is possible and not recommended: 600 kilometres of continuous corners is genuinely tiring, and fatigue on a mountain road with unguarded edges is the main risk factor here. Four days is the classic. The eight-day guided versions add the trails and back roads that do not appear on any map you would find online.

When to ride it

November to February is the peak window: dry, clear, and cool enough at altitude that you want a jacket liner in the morning. Chiang Mai's average daily maximum sits around 30°C in December and January, and mornings on the passes are considerably colder than that.

From roughly February through April, northern Thailand's burning season sets in. Agricultural and forest fires fill the valleys with smoke, air quality in Chiang Mai regularly hits unhealthy levels, and the mountain views you came for disappear into haze. NASA's Earth Observatory has documented the pattern in detail — fire activity typically peaks in March and fades in May as the rains return. It is the single biggest reason to check the calendar before booking.

May to October is the southwest monsoon. Rain is heavy but usually short and afternoon-loaded, the hills turn spectacular, and traffic drops away. Experienced riders often prefer late September and October: the rain is easing, everything is green, and the smoke is still months away. Our Thailand riding calendar goes month by month.

What to ride

The loop does not demand a big bike. What it demands is brakes, tyres and a comfortable riding position, because you will use all three for four days straight.

• Honda CB500X — the default northern Thailand tour bike, and rightly so. Light enough for the tight stuff, comfortable enough for the 190-kilometre final leg.
• Yamaha Ténéré 700 / Triumph Tiger 900 — more capable, more comfortable, more expensive, and more bike than the corners need. Good if you plan to leave the tarmac.
• Honda CRF300L — the pick if the itinerary includes trails. On the road it is buzzy at 100 km/h but wonderful everywhere else.
• 150–160cc scooters and small geared bikes — completely adequate for the loop itself, and what many independent riders use. Check the brakes and tyres yourself before you leave Chiang Mai.

Remember that Thailand drives on the left. Most riders adapt within a day, but junctions and petrol station exits are where the old habit resurfaces.

Practical notes

• Fuel is available in every town on the loop, but the stretch between Mae Hong Son and Mae Sariang has long gaps — fill up when you leave, not when the light comes on.
• Accommodation in Pai and Mae Hong Son books out in peak season; Mae Sariang almost never does.
• Police checkpoints are common on 108 near the border. Carry your passport, licence and IDP.
• Mountain fog is normal in the early morning between November and January, especially on the 1095 ridges.
• Border areas west of 108 are restricted in places. Stay on the highway unless a guide takes you off it.

Guided options on Moto Mass

• OnRoad Tour — 8 days from Thailand Moto Tours, the full loop as a sealed-road ride, Chiang Mai to Mae Hong Son, Pai and Mae Sariang.
• OffRoad Tour — 8 days, the same region on trails via Mae Win, for riders who want dirt rather than curves.
• Northern Thailand Experience — 13 days, $5,749, roughly 2,500 km, combining the loop with Doi Inthanon, Chiang Rai and the Golden Triangle, fully supported with a truck and trailer.
• Samoeng Loop day tour — $210, the standard shakedown ride before committing to the full circuit.
• Golden Triangle Grand Tour — 15 days, if you want the loop as part of a much longer northern itinerary.

Operator-by-operator detail is in our Thailand motorcycle tour companies guide, and budgeting is covered in what a Thailand tour costs.

Frequently asked questions

How long is the Mae Hong Son Loop?

Roughly 600 kilometres on Highways 108 and 1095. Pure driving time is around twelve hours, but nobody sensible rides it that way — four days is the standard, and six to eight lets you add Doi Inthanon and the side roads.

Does it really have 1,864 curves?

That is the signposted figure, and it is usually attributed to the Mae Sariang to Mae Hong Son section of Highway 108. Add Route 1095 through Pai — credited with 762 bends on the Chiang Mai stretch alone — and the real total for the full circuit runs well past two thousand. The number is a marketing figure that happens to be roughly honest.

Which direction should I ride it?

Clockwise via Pai is the popular choice and gets the famous section done first. Anticlockwise is quieter early and saves the busiest road for a day when you are fully adapted to riding on the left. Either works; the loop is not one-way in character.

Is it suitable for a beginner?

For a confident newer rider, yes, with two conditions: take four days rather than two, and do a short ride like the Samoeng Loop first to get used to Thai traffic. For someone who has never ridden in an unfamiliar country, a guided group with a support vehicle is the better first version.

What about the burning season?

Between roughly February and April the northern valleys fill with agricultural smoke and the views largely disappear. Riding is still possible but the experience is diminished, and anyone with respiratory sensitivity should avoid it entirely. If those months are your only option, consider southern Thailand instead.

Can I do it on a rented scooter?

Yes, and plenty of people do. Check the brakes, tyres and chain before you leave Chiang Mai, and be aware that a small automatic offers little engine braking on long descents. A 150cc geared bike is a meaningfully better tool for the same money.

Where should I stop overnight?

Pai, Mae Hong Son and Mae Sariang are the natural three, and they space the loop almost evenly. Khun Yuam is the underrated alternative to Mae Sariang if you want a shorter third day and a quieter town.