Puerto de los Neveros

Overview

Puerto de los Neveros is a category 1 climb that rewards patience over punch. Over 21.6 km it lifts you from a start elevation of 910 m to a summit at 1861 m, a net gain of 951 m. The average gradient reads a moderate 4.39%, but that figure hides the real story: with a maximum pitch of 10.38%, the road is far from uniform. This is a long-effort climb where consistency, not heroics, gets you to the top.

How the Gradient Unfolds

A 4.39% average across 21.6 km tells you this is a climb of stretches rather than a single relentless wall. The gap between the 4.39% mean and the 10.38% maximum means the gradient swings: expect shallower drags where you can breathe and carry speed, broken by steeper ramps that bite toward that double-digit peak. Note too that the net elevation gain of 951 m sits slightly above the total ascent of 931 m — a sign the road isn't purely uphill, with small descents or flat sections mixed in that let your legs recover before the next rise. Read the climb as a rhythm: settle into the shallow parts, respect the ramps, and never let the average fool you into complacency on the steep 10.38% pitches.

Pacing Notes

On a climb of this length, pacing is everything. Aim to hold a steady output just below your threshold on the shallower gradients, then absorb the steeper ramps toward 10.38% without spiking into the red. A useful benchmark is your FTP — your sustainable one-hour power. Given the 21.6 km distance, most riders will be climbing for well over an hour, so target a fraction below FTP to leave headroom for the ramps. If you don't know your number, run it through the FTP estimator before you tackle the mountain. The goal is to arrive at the 1861 m summit having spent evenly, not to blow apart on the first 10.38% wall and crawl the rest.

Gearing

For a 951 m ascent averaging 4.39% with ramps to 10.38%, gear for the steep moments rather than the average. A compact chainset paired with a wide cassette is the smart default. A 34×32 will get most fit riders over the top and keep cadence high through the ramps, but if you tire on long climbs or ride at a heavier load, step up to a 34×34. That extra sprocket buys precious cadence on the 10.38% pitches near the end of 21.6 km, when fatigue makes every percent feel steeper. Err toward the easier gear — spinning a 34×34 costs nothing on the shallow sections and saves your legs on the steep ones.

Summary

Puerto de los Neveros is a long, rhythmic category 1 climb that asks for pacing discipline and honest gearing. Manage the swing between its 4.39% average and 10.38% maximum, spin a low gear, and hold something back for the top.

Length: 21.6 km
Average gradient: 4.39%
Max gradient: 10.38%
Start: 910 m
Summit: 1861 m
Net gain: 951 m
Total ascent: 931 m
Category: 1