Puerto de Piornal

Overview

Puerto de Piornal is a Category 2 climb in Spain, running 17.4 km from a start elevation of 457 m to a summit at 1,226 m. The headline figure is a net elevation gain of 769 m at an average gradient of 4.41%. On paper that reads as a long, moderate haul — the kind of climb you can settle into and grind out without drama.

The profile tells a different story. Total ascent over the climb is 1,339 m, well above the 769 m net gain. That 570 m difference is climbing you do twice: you gain height, give some back on descents or false flats, then reclaim it. The road undulates rather than rising cleanly, so the effort is punchier than the average suggests and you cannot simply lock into one steady rhythm for 17.4 km.

How the Gradient Unfolds

An average of 4.41% is diluted by every flat and downhill metre in that undulating profile. Where the road does climb, it climbs harder than the average — steep pitches punctuate the ascent rather than spreading evenly across it, and the steepest ramp bites well beyond the number you would expect from a Cat 2.

• Flatter and recovery sections where the road levels or tips downhill — use them, they are free
• Repeated short climbs stacked back to back, the reason total ascent runs 570 m over net gain
• The steepest ramp, a sharp double-digit pitch that forces a gear change and a hard effort

Pacing Notes

On an undulating climb like this, even-speed pacing is a trap: holding a fixed pace over the rollers spikes your power on every ramp and burns matches you cannot get back. Ride to even effort instead. Let speed rise on the flatter and descending sections and cap your power on the steep pitches, targeting a sustainable power output you can hold across the full 17.4 km rather than one you can only survive to the next crest.

Know your ceiling before you start. Run the numbers through the FTP estimator so you have a wattage cap for the ramps and a target for the recovery zones.

Gearing

The steep ramps, not the 4.41% average, govern your gearing here. With pitches well into double digits, plan for a compact or sub-compact chainset paired with a wide-range cassette — a 34×32 or 34×34 gives you a cadence you can turn on the steepest ramp instead of grinding it out standing. Check your actual setup before the ride: confirm the cassette and derailleur capacity match what you are planning to run, because there is no fixing it on the mountain.

Summary

• Length: 17.4 km
• Average gradient: 4.41%
• Maximum gradient: 15.7%
• Net elevation gain: 769 m
• Total ascent: 1,339 m
• Category: 2

Puerto de Piornal rewards riders who read the profile rather than the average. Pace it to even effort, gear for the steep ramps, and treat the 570 m of extra ascent as the real cost of the day.