Puerto de Fates

Overview

Puerto de Fates is a Category 2 climb in Spain, running 6.6 km from the coast to its summit. It starts at sea level (0 m) and tops out at 454 m, giving a net elevation gain of 454 m at an average gradient of 6.84%. On paper that reads as a steady, moderately hard ascent — a climb you can hold a rhythm on for the best part of half an hour.

The profile is not that clean. While the net gain is 454 m, the total ascent is 614 m. That 160 m difference is climbing you do twice: elevation you gain, give back on a descent or false flat, then have to earn again. For a 6.6 km climb, that is a significant chunk of undulation. It means the average gradient understates the real load, and it punishes riders who lock into one gear and expect the road to keep tilting up.

How the Gradient Unfolds

The 6.84% average is a blend of contrasting terrain, not a description of the road under your wheels at any given moment. With 160 m of hidden re-climbing, the ascent alternates between genuine climbing pitches and sections that flatten or drop away. The steep ramps are where the effort is won or lost.

• Flatter and recovery sections where the road eases or briefly descends — use them, but do not switch off.
• Repeated short climbs that force you back onto the gas after each dip, spiking your power well above the average.
• The steepest ramp, noticeably harder than 6.84%, demanding a gear in reserve and a controlled effort.

Pacing Notes

On an undulating climb like this, even-effort pacing beats even-speed pacing. Chasing a constant speed forces you to overreach on the ramps and coast on the flats, burning matches you will want back later. Instead, hold a steady output anchored to your sustainable power output, letting speed rise and fall with the grade.

Ease slightly on the flatter recovery sections rather than hammering to "make time," then meter your effort back up as each short climb reappears. If you are unsure what a repeatable ceiling looks like for you, run the numbers through the FTP estimator before you commit to a target.

Gearing

The steepest ramp governs your setup, and it is steep enough that you want low gears in hand. Run a compact or sub-compact chainset paired with a wide-range cassette — a 34×32 or 34×34 gives you the cadence to spin the sharpest pitches instead of grinding them. Confirm your chainset and cassette before the ride; discovering you are over-geared on the steepest section is a mistake you cannot fix mid-climb.

Summary

• Length: 6.6 km
• Average gradient: 6.84%
• Net elevation gain: 454 m
• Total ascent: 614 m
• Category: 2

Puerto de Fates rewards riders who respect its undulation. Pace it by effort, gear it for the steepest ramp, and treat the 160 m of extra ascent as the real story the average gradient hides.