Paso de las Tres Quebradas

Paso de las Tres Quebradas cycling climb profile

Paso de las Tres Quebradas is not difficult because the average gradient looks savage. It is difficult because the numbers hide the real problem: 82.2 km of climbing from 555 m to 3,839 m, with 3,284 m of net elevation gain and 3,381 m of total ascent. That combination makes this an HC climb where the decisive factor is not one short wall, but the cost of staying controlled for a very long time.

The 3.99% average gradient can mislead a rider into treating this like a tempo climb. It is not. Over this distance, even a moderate average produces a huge accumulated load. The small difference between net gain and total ascent also suggests a broadly upward road, rather than a climb broken up by major descents. That matters tactically: there are unlikely to be many true recovery opportunities if the effort is being ridden too close to threshold.

How the gradient unfolds

Based on the profile numbers, the climb starts low and finishes high, gaining more than three vertical kilometres before the summit. The average grade points to long sections that are rideable at steady endurance or tempo power, but the 27.64% maximum gradient changes the pacing equation. A climb with that maximum is not a smooth diesel effort from bottom to top. It contains at least one section steep enough to force a major torque spike if the gearing is wrong.

That is the central tension of Paso de las Tres Quebradas: the average says patience, the maximum says preparation. The successful ride is built around absorbing the steepest pitches without letting them dictate the entire day.

Pacing strategy

The first priority is to avoid chasing speed early. At 82.2 km, small over-efforts compound. Riding the lower slopes as if the 3.99% average makes the climb easy is the common mistake. Keep the effort below the level that feels productive in the first phase, because the climb keeps taking altitude all the way to 3,839 m.

Use power or perceived effort conservatively. If using FTP, the climb should be paced with the understanding that the duration will be far beyond a standard threshold effort. The steep ramps are where discipline matters most: shift early, stay seated when traction and cadence allow, and let speed fall rather than forcing a high-power surge.

Gearing notes

Bring low gearing. The 27.64% maximum gradient is the number that should drive the setup, not the 3.99% average. A rider can spend most of the climb in a steady rhythm, but the steepest section will punish a race-oriented gear range if fatigue is already present.

For most riders, the right setup is one that allows a comfortable cadence at moderate climbing power and still leaves a bailout gear for the maximum gradients. The goal is not to climb the steepest pitch fast. It is to get over it without burning matches needed for the remaining distance.

What defines the climb

Paso de las Tres Quebradas is an endurance management problem disguised by a modest average gradient. The distance, net gain, summit elevation, and HC classification all point in the same direction: ride it like a long mountain stage, not like a single climb interval. The riders who pace it best will be the ones who respect the total ascent before the road forces them to.