Paso de Chureo

Paso de Chureo cycling climb profile

Paso de Chureo is a Category 1 climb in Argentina that asks for sustained work rather than one short, decisive effort. The climb runs for 18.4 km, rising from 1670 m to 2816 m, with 1146 m of net elevation gain and an average gradient of 6.24%.

That combination matters. A climb of this length at this average is not especially violent on paper, but it is long enough that poor pacing compounds quickly. The maximum gradient of 10.82% also tells you the road is not perfectly uniform. There are steeper ramps hidden inside the broader 6.24% average, so riding by feel alone can be risky if you let those pitches drag you above threshold too often.

How the gradient unfolds

With the available profile data, Paso de Chureo should be read as a long, mostly sustained ascent from bottom to summit rather than a climb defined by a single known wall. The numbers do not identify a specific steep sector, so the practical approach is to assume the gradient keeps asking for pressure almost continuously, with sharper sections up to 10.82% interrupting the rhythm.

The key is the gap between the average and maximum gradient. At 6.24%, the climb is rideable in a controlled seated tempo for a well-paced rider. But a maximum of 10.82% is enough to force a change in cadence and torque if gearing is too aggressive. Those ramps are where riders often make the climb harder than it needs to be, not because the slope is impossible, but because they respond with short surges that become expensive over 18.4 km.

Pacing and gearing notes

Treat Paso de Chureo as a measured threshold management problem. The bottom should feel almost too easy. If you are already fighting the pedals early, the length will expose that decision before the summit.

Use a target based on /glossary/ftp or a recent climbing effort, then leave room for the steeper pitches. On the steadier sections, settle into a pressure you can repeat for the full climb. When the road kicks toward the maximum gradient, shift early and protect cadence instead of standing and forcing a big gear unless the move is deliberate.

Gearing should prioritise range. The average gradient does not demand extreme gearing by itself, but the length and the 10.82% maximum make an easier climbing gear the safer choice. A setup that lets you stay seated on the steeper ramps will usually be faster overall than one that feels efficient on the moderate sections but forces repeated low-cadence efforts.

The cleanest way to ride Paso de Chureo is not to chase speed changes. Let the gradient vary, keep the effort stable, and save any real lift for the final part of the climb once the 18.4 km distance has been accounted for.