Alto del Aliñadero cycling climb profile
Alto del Aliñadero is a category 1 climb built around duration rather than headline steepness. On paper, 37.4 km at 4.13% looks controlled. On the road, that average is the trap. The climb starts at 517 m and finishes at 2063 m, gaining 1546 m net, but the total ascent is 1713 m. That gap matters because it tells you the road is not a perfectly even ramp from bottom to summit. There is relief somewhere in the profile, and that means the climbing load is likely delivered in repeated rises rather than one clean metronomic gradient.
How the gradient rides
With only the full climb statistics available, the safest way to read Alto del Aliñadero is as a long, uneven aerobic climb with selective steeper pitches. The average gradient of 4.13% suggests much of the route can be ridden seated and rhythmically, but the maximum gradient of 11.22% changes the pacing equation. A climb this long does not need many steep ramps to become costly. If those pitches are taken too hard, the rider pays for them over the remaining distance.
The total ascent being higher than the net elevation gain points to interruptions in the upward trend. That can make the climb feel easier early if the road offers brief breaks, but it also makes pacing less straightforward. Riders often overcommit on moderate gradients after a flatter or easier section because the speed feels manageable. On Alto del Aliñadero, that is exactly where restraint matters. The climb is long enough that the correct effort is not the one that feels good in the first part, but the one that still feels repeatable deep into the ascent.
Pacing and gearing notes
This is a climb to ride by controlled effort, not by chasing speed. Use /glossary/ftp as the ceiling rather than the target. The average gradient may invite a strong tempo approach, but the 37.4 km length means even small over-threshold surges can accumulate quickly, especially when the road touches its steepest ramps.
Gearing should be chosen for the 11.22% maximum, not the 4.13% average. If the easiest gear is only comfortable on the moderate sections, the steepest pitches will force low cadence and unnecessary muscular fatigue. A sensible setup lets you stay seated through most of the climb, lift cadence after easier sections, and keep the sharper ramps from turning into repeated anaerobic efforts.
The practical strategy is simple: settle early, let the shallow and easier sections feel almost too controlled, and save the real pressure for the upper part as the summit elevation of 2063 m gets closer. Alto del Aliñadero rewards riders who understand that a modest average gradient over a long distance is still a major climbing demand.