Alto de Ichigualasto

Alto de Ichigualasto cycling climb profile

Alto de Ichigualasto is a category 2 climb in Argentina that asks for controlled pacing rather than brute-force attacking from the bottom. The headline numbers are manageable on paper - 8.6 km at 5.77% - but the maximum gradient of 11.37% changes how the climb should be ridden.

The climb starts at 1018 m and tops out at 1515 m, gaining 497 m from bottom to summit. That vertical gain over this distance points to a sustained effort rather than a short punch. The average gradient sits in the zone where a strong rider can settle into threshold rhythm, but the double-digit maximum means there are sharper sections capable of dragging you above target power if you let speed dictate the effort.

How the gradient rides

With the available profile data, Alto de Ichigualasto should be treated as a mostly aerobic climb with meaningful interruptions. A 5.77% average is not severe enough to force constant low-cadence grinding, but it is steep enough that small pacing mistakes accumulate quickly over 8.6 km.

The key is not to assume the climb is uniformly 5.77%. The presence of an 11.37% maximum gradient tells you the road has at least one section that is roughly twice the average steepness. That matters because a rider who starts at or above /glossary/ftp on the steadier gradients will have very little room to absorb those ramps without going deep into the red.

For most riders, the climb will feel like a long, controlled tempo-to-threshold effort punctuated by harder ramps. The risk is psychological as much as physical: when the average looks moderate, it is easy to over-gear early, then pay when the gradient rises.

Pacing strategy

Ride the opening as if the steepest part is still ahead. On an 8.6 km climb, the cost of starting too hard is not immediate collapse - it is a slow loss of cadence, rising muscular fatigue, and reduced ability to respond when the slope kicks toward its 11.37% maximum.

A sensible approach:

• Start below target effort until the rhythm of the climb is clear
• Keep cadence smooth on the average-grade sections rather than chasing speed
• Shift before the steepest ramps, not after cadence has already fallen
• Let power or effort rise briefly on the hardest pitches, then bring it back under control
• Save the true maximal effort for the final part of the climb, not the first steep section

If you are using power, this is the kind of climb where a realistic threshold number matters. An inflated FTP can turn the first half into a trap. If needed, use /tools/ftp-estimator to anchor the effort before riding it.

Gearing notes

Because the climb averages 5.77% but reaches 11.37%, gearing needs to cover both steady climbing and short, steeper ramps. A setup that feels comfortable on a moderate gradient may become too tall when the road pitches into double digits.

The practical goal is simple: preserve cadence without forcing repeated out-of-saddle surges. Alto de Ichigualasto is long enough that muscular economy matters, and the steepest gradients are high enough that running out of gear can turn a controlled climb into a strength workout. Choose gearing that lets you stay seated through the hardest ramps, then use the more moderate sections to rebuild rhythm rather than recover from avoidable overreach.