Alto de las Trojas

Alto de las Trojas cycling climb profile

Alto de las Trojas is a short, concentrated climbing effort rather than a long mountain grind. The numbers make that clear: 4.6 km at an average gradient of 7.34%, rising from 2,983 m to 3,323 m. That gives the climb its character. It is not long enough to ride like an alpine pass where patience alone can save the day, but it is steep and high enough that a poor opening effort will come back quickly.

The most important detail is the relationship between the average gradient and the maximum gradient of 8.9%. The top-end pitch is not wildly separated from the overall average, which points to a climb that stays consistently demanding rather than one defined by a single violent ramp. In practice, that means the pressure on the pedals begins early and never really disappears.

How the gradient unfolds

With only the core climb data available, the safest read is that Alto de las Trojas should be treated as a steady category 2 ascent. There is no profile evidence here for a long recovery section, and the average gradient is already high enough that even the easier portions, if they come, are unlikely to feel genuinely easy.

The climb gains 340 m from start to summit, which is a significant vertical change packed into a compact distance. That makes the effort feel denser than its 4.6 km length suggests. Riders who look only at the distance may be tempted to attack it too hard, but the combination of sustained gradient and summit elevation makes pacing more important than brute force.

Pacing and gearing notes

The correct approach is controlled aggression. Start below the effort you think you can hold, then let the climb come to you. If riding by power, this is the kind of ascent where anchoring the first half around a sustainable /glossary/ftp-based target matters more than chasing speed. The gradient is steep enough that an early surge above threshold can force a costly fade before the summit.

Gearing should be chosen for cadence preservation, not pride. A climb averaging 7.34% with pitches up to 8.9% rewards having one easier gear available for the steepest moments. If you are already grinding near the bottom, there is not much tactical flexibility left when the road tightens.

For a hard effort, ride the opening section seated and economical, keep the upper body quiet, and avoid responding to every small change in pitch. Once the summit is clearly within reach, the climb is short enough to justify lifting the effort. But the winning move here is not a dramatic acceleration at the base. It is arriving in the final portion with enough control left to use the climb’s compact length rather than be punished by it.