Famous Cycling Climbs in Thailand: Doi Inthanon and Doi Suthep

Thailand’s famous climbs near Chiang Mai: Doi Inthanon, the long road to the country’s highest point, and Doi Suthep above the city.

By Jonathan Ciaccio November 10, 2026 1 min read

Rear view of a rider in the Corbah TOUGH jersey above an alpine lake.

Northern Thailand has big climbs within reach of Chiang Mai. These two are the best known.

Strava is a trademark of Strava, Inc. Corbah isn’t connected to Strava; this is our own guide.

The climbs

Doi Inthanon: about 39 km from Chom Thong to near Thailand’s highest point, steepest at the very end.
Doi Suthep: about 10.8 km at roughly 6%, from the western edge of Chiang Mai near the zoo and the university up to the temple of Wat Phra That Doi Suthep. The last approach has a much sharper ramp. Local riders use it as their regular benchmark, and the road carries on higher toward Doi Pui.

Rider in the Corbah TOUGH jersey climbing a mountain road past pines and granite.

Planning a trip

Start early: it’s hot, so climb before the heat of the day.
Carry enough water: see what to carry on a road ride.
When to go: see the best winter cycling destinations.

What to wear

In the heat, light colours help. Our Climbs jerseys are drawn from the mountains: the Mont Ventoux Mistral, Contour and TOUGH After the Climb. Each is made to order, with free personalization.

More climbs: famous Strava climbs.

Strava is a trademark of Strava, Inc. Corbah isn’t connected to Strava; this is our own guide.

Written by Jonathan Ciaccio at Corbah

Corbah designs original cycling jerseys and kit, made to order with free personalization on every jersey. Want one that's only yours? Request a free custom design.