Porto de Valdecriba

Overview

Porto de Valdecriba is a long-haul Category 1 climb that trades outright steepness for sheer, unrelenting distance. Over 20.7 km it hauls you from a valley floor at 330 m up to a summit of 1437 m, a net gain of 1107 m. The average gradient reads a modest-sounding 5.34%, but that number hides the real story: a road this long at this pitch is a sustained effort that rewards patience far more than power. With a total ascent of 1099 m, almost every metre of forward progress is also a metre of climbing — there is very little coasting to be had here.

How the Gradient Unfolds

The defining feature of Valdecriba is consistency broken by one sharp reminder. For the vast majority of its 20.7 km the road hovers around its 5.34% average, the kind of grade you can settle into and hold for a long time. That steadiness is what makes the climb approachable on paper and punishing in practice — there are no flat recovery sections to reset your legs, just a metronomic drag upward. The sting comes from a maximum pitch of 13.22%, more than double the average. When the road ramps toward that figure, the contrast is brutal: legs already deep into an hour-plus effort suddenly meet a wall. Knowing where that steepest slope bites, and leaving something in reserve for it, is the difference between cresting strong and cracking.

Pacing Notes

On a climb this long, pacing is everything. The 1107 m of vertical means you will be climbing for a sustained block of time, so anchor your effort to your sustainable ceiling rather than how you feel in the first few kilometres. A good rule of thumb is to ride the bulk of the climb just below your FTP, keeping a small margin so the 13.22% ramp doesn't blow your effort apart. If you don't know your threshold number yet, run it through the FTP estimator before you commit to a target — going out too hard on the lower slopes of a 20.7 km ascent is a mistake you pay for dearly near the 1437 m summit. Fuel early and often; the total ascent of 1099 m burns through reserves whether or not the gradient ever feels dramatic.

Gearing

Because Valdecriba is defined by duration rather than a single savage wall, gearing choice is about protecting your cadence over the long haul. A compact 34-tooth inner chainring paired with a wide-range cassette is the sensible baseline. A 34×32 gives most riders enough range to spin the 5.34% average comfortably and survive the 13.22% pitch out of the saddle. If you climb at a lower cadence, carry extra weight, or simply want insurance for the steep ramp after 20.7 km in the legs, step up to a 34×34 — the extra teeth cost nothing on the shallower sections and buy real relief when the road bites.

Summary

Porto de Valdecriba is a climber's endurance test: long, steady, and only briefly cruel. Respect the distance, meter your effort below threshold, gear for cadence, and the 1437 m summit is well within reach.

Length: 20.7 km
Average gradient: 5.34%
Max gradient: 13.22%
Start: 330 m
Summit: 1437 m
Net gain: 1107 m
Total ascent: 1099 m
Category: 1