Puerto de Allende (Puerta de Arriba)

Puerto de Allende (Puerta de Arriba) climb profile

Puerto de Allende (Puerta de Arriba) is a short, controlled category 4 climb in Mexico. At 3.6 km with an average gradient of 4.18%, it is not long enough to require a full mountain pacing plan, but it is sustained enough that riding it too hard from the bottom can still cost you over the top.

The climb starts at 286 m and finishes at 437 m, with 151 m of net elevation gain. That tells you the main character of the road before you even look at the maximum gradient: this is a steady uphill effort rather than a high-altitude pass or a climb defined by repeated steep walls.

How the gradient rides

The headline number is the 4.18% average. For most trained riders, that sits in the tempo-to-threshold range depending on effort, gearing, and wind. The 7.41% maximum gradient is the key limiter. It is steep enough to force a gear change and briefly lift the torque demand, but not steep enough to completely change the climb into a survival effort.

That combination matters tactically. On a climb this short, the temptation is to treat the opening like a hard acceleration. The problem is that a 3.6 km ascent gives enough time for an early over-threshold surge to accumulate fatigue, especially if the steepest section arrives after you have already spent too much energy. The better approach is to ride the first part with control, let the gradient dictate small changes in pressure, then build once the summit feels within reach.

Pacing and gearing notes

This is a climb where smoothness matters more than bravado. Use a gear that lets you stay seated through the 4.18% average gradient without grinding. When the road touches the 7.41% maximum, shift early rather than waiting until cadence has already collapsed. Protecting /glossary/cadence keeps the effort aerobic and prevents small ramps from becoming anaerobic spikes.

For pacing, aim for a firm but repeatable effort for most of the climb. If using power, this is the kind of ascent where riding around /glossary/ftp may be realistic for a short test, but only if you avoid surging above it every time the gradient tightens. If you are riding it inside a longer route, keep the effort closer to controlled tempo and save the harder work for the final section.

Bottom line

Puerto de Allende (Puerta de Arriba) is a compact, honest climb. Its 3.6 km length and 4.18% average make it approachable, while the 7.41% maximum gradient gives it just enough bite to punish sloppy pacing. Ride it progressively, keep cadence stable, and treat the summit as something to build toward rather than chase from the first meter.