Dou Pass

Dou Pass cycling climb profile

Dou Pass is not a climb where the distance tells the story. At 7.8 km, it looks manageable on paper until the gradient line changes the entire calculation. The average gradient is 13.57%, with a maximum of 26.45%, and that combination makes this an HC climb defined by resistance rather than rhythm.

The road starts at 500 m and tops out at 1559 m, giving 1059 m of net elevation gain. That is the key number for how this climb rides: there is very little horizontal distance available to absorb that height gain. Even without a detailed sector-by-sector breakdown, the profile is clear enough. From bottom to summit, Dou Pass demands sustained climbing pressure, and any moment that feels less severe is unlikely to be a true recovery because the overall average remains extremely high.

How the gradient unfolds

The defining feature is compression. Over 7.8 km, the climb has to gain 1059 m, so the gradient does not need many spectacular ramps to become decisive. The listed maximum of 26.45% matters because it changes the pacing problem. This is not simply a steady steep climb where a rider can settle into one power number and wait for the summit. The average is already severe, and the steepest pitches are steep enough to force changes in cadence, position, and torque.

That means the climb should be treated as a sequence of hard resistance blocks rather than a classic tempo ascent. The bottom should feel controlled, almost deliberately under-paced, because a strong opening effort on a 13.57% average climb has a high cost. On terrain this steep, going a little too hard early does not just raise heart rate. It pushes cadence down, increases muscular load, and makes the later ramps harder to manage.

Pacing and gearing notes

Use the lowest practical gearing available. A compact setup or climbing-focused cassette is not a comfort choice here, it is a performance choice. The 26.45% maximum gradient means there may be sections where staying seated at a normal cadence is unrealistic, so the goal is to preserve momentum without turning every ramp into a maximal effort.

Practical pacing priorities:

• Start below target effort, especially if riding by /glossary/ftp, because the gradient will create natural surges.
• Avoid chasing speed. On a climb this steep, speed is a poor guide and will punish overreactions.
• Stay seated where possible to control traction and torque, then stand briefly on the steepest ramps to keep the gear moving.
• Keep power or perceived effort capped early, because the average gradient leaves little room for recovery later.

Dou Pass rewards patience more than aggression. The rider who treats the opening kilometres as a test of restraint will have more options near the top. The rider who tries to force rhythm onto a climb averaging 13.57% is likely to run out of cadence before running out of road.