Road cyclists come to Chiang Mai for one climb and stay for the rest. The Doi Suthep ascent is the benchmark everyone measures themselves against, but it is only the start: a classic hundred-kilometre loop, the highest paved road in the country, quiet rice-field lanes for easy days, and the start of one of Asia's great multi-day rides all radiate out from the same valley. This guide covers every major road route, with distance, elevation, difficulty, and how to ride it well.
For the wider picture, see our cycling hub.
The benchmark: Doi Suthep
This is the ride. From the base near Chiang Mai University and the zoo, the road climbs steadily up the mountain to Wat Phra That Doi Suthep, the temple that overlooks the city.
- Distance: About 11 to 12 km to the temple.
- Ascent: Roughly 700 to 800 m.
- Gradient: Averaging 6 to 8 percent, with a few steeper ramps and only brief respites.
- Time: 50 to 70 minutes for fit riders, 60 to 90 for most.
- Extend it: Continue past the temple toward the Hmong village and Doi Pui for several more kilometres of quieter climbing.
Start at dawn. The air is cool, the road is quiet, and you will be descending before the temple traffic builds. Carry at least two bottles, and enjoy one of the best descents in the region on the way back down (stay controlled; the road has traffic and tight bends). The climb begins near Huay Kaew Waterfall at the foot of the mountain.
The classic: the Samoeng loop
If Doi Suthep is the test, the Samoeng loop is the joy ride: a roughly 100 km circuit through the mountains northwest of the city, quieter and more beautiful than its fame suggests.
- Distance: Around 100 km (variations from about 80 to 110 km depending on the exact route).
- Ascent: Roughly 1,200 to 1,500 m of rolling climbing, no single brutal wall.
- Route: Out through Mae Rim, over to Samoeng, and back via the Hang Dong side (or reverse).
- Difficulty: Moderate. A fit recreational rider can enjoy it over a half to full day.
- Direction: Both work; many prefer anti-clockwise (Mae Rim first) for the gradients.
There are cafes and shops in Samoeng town for a mid-ride stop. Carry enough water for the climbs between villages, and start early in the hot months.
The epic climb: Doi Inthanon
The highest road in Thailand tops out near the 2,565 m summit of Doi Inthanon, about two hours southwest of the city. Riding the full climb is a long, hard day, and the final kilometre to the summit area ramps into steep double-digit gradients that have broken many strong riders. Many cyclists drive partway and ride the upper section, or tackle the whole thing as a supported epic. The summit is genuinely cold even when the valley bakes, so carry layers for the top and the long descent. A bucket-list ride for those with the legs.
The adventure: the Mae Hong Son loop
For experienced touring cyclists, the Mae Hong Son loop is one of the great rides in Asia: a roughly 600 km mountain circuit northwest of Chiang Mai through Pai, Mae Hong Son, and Mae Sariang, famous for its many hundreds of curves and relentless climbing.
- Distance: Around 600 km.
- Duration: Commonly 5 to 8 days.
- Difficulty: Hard. Big daily ascent, long remote stretches, demanding logistics.
- Plan for: Accommodation each night, food and water on quiet sections, mechanical self-sufficiency, and ideally a support vehicle or a tour operator.
This is a trip, not a ride. Treat it with the planning a multi-day mountain tour deserves.
Easy days: flat and countryside
Not every ride needs a mountain. For recovery spins, beginners, and anyone who just wants quiet miles:
- San Kamphaeng and the eastern lanes: Flat, quiet, rice fields and villages. Lovely at dawn.
- Saraphi and the south: Gentle countryside toward Lamphun, with longtail back roads.
- Huay Tung Tao reservoir loop: Short, scenic, close to town.
- The 700 Year Park circuit: Flat and traffic-free, ideal for intervals and safe laps.
Route comparison
| Route | Distance | Ascent | Difficulty |
|---|---|---|---|
| Doi Suthep climb | ~12 km (climb) | ~700 to 800 m | Hard climb |
| Samoeng loop | ~100 km | ~1,200 to 1,500 m | Moderate |
| Doi Inthanon | Long day | Very high | Very hard |
| Mae Hong Son loop | ~600 km | Huge (multi-day) | Epic |
| San Kamphaeng lanes | Flexible | Minimal | Easy |
Practical tips for road riding here
- Start at dawn. Coolest air, quietest roads, clearest views.
- Hydrate hard. Carry two bottles minimum; refill at 7-Elevens and village shops.
- Lights and bright kit, front and rear, even by day.
- Pick mountain and countryside roads over busy highways; the Doi Suthep and Samoeng roads are light on traffic outside peak hours.
- Mind the descents. The Doi Suthep and Samoeng descents are fast and have traffic and tight bends; stay controlled.
- Rent a quality bike if you did not bring one; see our bike rental and shops guide.
The bottom line
Road cycling is one of the genuine highlights of Chiang Mai. Do Doi Suthep at dawn at least once, ride the Samoeng loop for the pleasure of it, and save Doi Inthanon and the Mae Hong Son loop for when your legs are ready. Plan the rest with our cycling hub, and read the honest-reality guide for traffic, dogs, heat, and the burning season before you set off.