Alto de Piedra

Alto de Piedra cycling climb profile

Alto de Piedra is a Category 1 climb built around sustained work rather than one decisive wall. The numbers are straightforward: 12.6 km at an average gradient of 6.58%, starting at 536 m and topping out at 1365 m. That puts the climb in the range where pacing discipline matters more than punch, because the effort is long enough to punish early overreach but not so steep that momentum disappears completely.

The listed elevation gain is 829 m, while the total ascent is 814 m. Practically, that points to a climb where the headline demand is still clear: a long, continuous uphill load with very little room to fake fitness.

How the gradient rides

The key figure is the relationship between the average gradient and the maximum gradient. An average of 6.58% over 12.6 km means Alto de Piedra asks for a real aerobic commitment from the bottom. The maximum gradient of 9.37% suggests there are steeper ramps, but nothing in the profile data supports treating this as a climb defined by extreme double-digit pitches.

That matters tactically. A rider who responds to every harder section as if it is the decisive move will likely burn too much anaerobic capacity before the upper part of the climb. The smarter read is to treat the 9.37% maximum as a warning to keep a gear in reserve, not as the defining character of the ascent.

Because the provided data does not include kilometre-by-kilometre gradients, there is no reliable basis for saying the bottom, middle, or final kilometres are specifically harder. The best working assumption is to pace Alto de Piedra as one sustained climb from start to summit, with short gradient changes absorbed through cadence and gearing rather than repeated surges.

Pacing and gearing notes

For most riders, Alto de Piedra is a controlled threshold-style climb. If riding by power, settle below the effort you could hold for a shorter climb and let the duration do the damage. If you know your /glossary/ftp, this is the kind of ascent where starting slightly under control is usually faster than trying to claw back after an early fade.

Gearing should reflect the combination of length and maximum gradient. A setup that feels comfortable at 6% to 7% can still become inefficient when the road tips toward 9.37%, especially late in the effort. Choose a low enough gear to keep cadence from collapsing on the steeper ramps. Grinding early is the easiest way to turn a climb like this into a survival effort.

The cleanest strategy is simple:

• Ride the opening kilometres conservatively, even if the gradient feels manageable.
• Keep seated pressure steady through the average 6.58% workload.
• Use the easiest gear before the steepest ramps force it.
• Save any above-threshold effort for the final part of the climb, not the first time the road bites.

Alto de Piedra is not complicated on paper, but that is exactly why it can be misridden. The climb rewards riders who respect the full 12.6 km, not those who judge it only by the absence of extreme gradients.