Paso de Llaima

Paso de Llaima cycling climb profile

Paso de Llaima is a category 3 climb in AR that looks manageable from the headline number, but the detail matters. The climb runs for 11 km, rises from 897 m to 1344 m, and gains 447 m at an average gradient of 4.06%.

That average tells only part of the story. A 4.06% climb over this distance is not a pure grinder, and many riders will be tempted to ride it on feel, especially early. The warning sign is the maximum gradient of 11.29%. That gap between the average and the steepest pitch strongly suggests a climb where the difficulty is not evenly spread. The hard moments are likely concentrated into ramps, while easier ground brings the overall average back down.

How the gradient rides

From bottom to summit, the best way to think about Paso de Llaima is as a rolling sustained climb rather than a constant wall. The total elevation gain is meaningful enough to create a real aerobic demand, but the average gradient is low enough that speed, wind exposure, and gear choice can still swing the effort sharply.

The key tactical feature is the contrast between the moderate average and the double-digit maximum. If you ride the first part as though the whole climb will sit near 4%, the steeper sections can force an abrupt jump above threshold. That is where the climb becomes costly. Not because 11 km is excessive on its own, but because repeated surges on steeper ramps can turn a controlled tempo effort into a sequence of anaerobic repayments.

Pacing and gearing

Treat the opening kilometres as a setup phase. Hold back slightly below your target climbing effort until the rhythm of the gradient is clear. On a climb like this, the fastest pacing is usually the least dramatic pacing: keep pressure on the pedals through easier sections, but avoid chasing speed when the road tips up.

A compact or wide-range climbing setup is sensible if you want to keep cadence stable on the 11.29% maximum gradient. The average gradient may not demand a very low gear, but the steepest ramp might. If you run out of gear there, the choice becomes standing, grinding, or spiking power - none of which is ideal if the goal is to finish the 11 km strongly.

For riders pacing by power, this is a good climb to anchor around steady aerobic output rather than reacting to every change in gradient. Let the steeper pitches rise briefly, but cap the effort before it becomes a full surge. If you are riding by feel, the cue is simple: the ramps should feel controlled, not like attacks. Save the hardest effort for the final part of the climb, when the summit at 1344 m is already within reach.

For more on setting sustainable climbing intensity, see /glossary/ftp and /tools/ftp-estimator.