Paso Los Bañitos

Paso Los Bañitos cycling climb profile

Paso Los Bañitos is a long, high-elevation Category 1 climb: 17.3 km at an average gradient of 5.03%, rising from 3306 m to 4175 m. On paper, that average looks manageable. In practice, the combination of length, elevation, and a maximum gradient of 9.2% makes it a climb that rewards restraint far more than aggression.

The defining feature is not brutality from the first pedal stroke, but accumulation. A 5.03% average over 17.3 km means the climb gives you enough resistance to require steady pressure almost all the way to the summit, without necessarily forcing repeated out-of-saddle efforts if paced correctly. The danger is psychological: riders can look at the average gradient, ride the lower slopes too close to threshold, then find the later kilometres much more expensive once the elevation and duration start compounding.

How the gradient unfolds

The available profile data points to a climb built around sustained moderate gradient, with steeper pitches reaching 9.2%. That matters tactically. A climb with this average and that maximum is unlikely to feel like a wall, but the steeper ramps are sharp enough to punish over-gearing or surging.

Because the summit sits at 4175 m after starting already at 3306 m, the whole ascent happens high. That changes the pacing equation. Even if the gradient feels controlled, oxygen availability will make hard accelerations cost more and recovery from them slower. The smart ride is to keep the effort smooth, especially when the road kicks above the average.

Pacing and gearing notes

Treat Paso Los Bañitos as a long aerobic climbing effort rather than a short power test. The first priority is not matching the 5.03% average, but keeping the effort below the point where each 9.2% ramp forces a spike you cannot absorb.

Practical approach:

• Start conservatively for the opening kilometres, even if the gradient feels inviting.
• Use a gear that lets you stay seated and keep cadence stable on the moderate sections.
• Save your lower gears for the steepest pitches up to 9.2%, not just for the final part of the climb.
• Avoid repeated surges, since the climb starts at 3306 m and finishes at 4175 m, leaving little margin for recovery at altitude.
• If pacing by power, anchor the ride around a sustainable climbing effort rather than chasing short-term speed. A climb of 17.3 km is long enough for early optimism to become a late fade.

For riders using /glossary/ftp as a pacing reference, this is the type of climb where discipline matters more than peak output. The total gain is substantial, with 869 m from start to summit, so the fastest ride will usually come from keeping pressure constant and letting the climb come back to you rather than trying to force it early.