Puerto de Estiviella

Overview

Puerto de Estiviella is an HC climb in Spain, stretching 9.1 km from a start elevation of 1,023 m to a 2,271 m summit. Its net elevation gain is 1,248 m, and its 13.73% average gradient places it among the most demanding paved ascents you can attempt. This is a sustained, high-altitude effort with no easy stretches to hide behind.

The climb records 1,405 m of total ascent against that 1,248 m of net gain — a 157 m difference. That gap tells you the road undulates: it gives back roughly 157 m of descent that you then have to re-climb. On a slope this steep, every metre re-earned costs disproportionately, so the true workload is heavier than the net figure alone suggests. Budget for it.

How the Gradient Unfolds

A 13.73% average on this profile is not a smooth constant. The undulation means the average is pulled down by short descents and eased sections, which implies the climbing pitches between them are steeper than 13.73% to compensate. Do not treat the average as the number you will actually ride.

• Brief flatter or downhill recovery sections that account for the 157 m of re-climbing
• Repeated short climbs stacked back to back rather than one uniform wall
• Steeper ramps between the recoveries, harder than the headline average
• No sustained mellow zone — even the "easy" parts are relative

Pacing Notes

On an undulating HC climb, pace to effort, not to speed. If you chase an even speed, the steep ramps will force you far over your sustainable power output and you will blow up before the summit. Instead, hold a steady effort: let your speed drop on the ramps and accept faster progress on the recovery sections without surging.

Know your ceiling before you start. Use the FTP estimator to set a target, then ride the steep pitches just under it. The recoveries are where you spin the legs out and recover heart rate — resist the urge to hammer them, because you will need that reserve for the next ramp.

Gearing

Gearing is governed by the steepest pitches, and at this average you will meet ramps well into the high teens. Run a compact (34-tooth inner) or a sub-compact chainset, paired with a wide-range cassette such as 34×32 or 34×34. That bottom gear lets you keep a survivable cadence on the ramps instead of grinding at 40 rpm. Check your setup before the ride — confirm the cassette fits your derailleur's capacity and that the chain is long enough. There is no room to improvise a bailout gear mid-climb.

Summary

• Length: 9.1 km
• Average gradient: 13.73%
• Net elevation gain: 1,248 m
• Total ascent: 1,405 m
• Category: HC

Puerto de Estiviella is a genuinely severe HC test: 9.1 km at 13.73% average, 1,248 m of net gain to a 2,271 m summit, with 157 m of re-climbing baked in. Pace to effort, gear low, and respect the undulation.