Coll d'Estenalles

Overview

Coll d'Estenalles is a long, steady category-2 climb that rewards patience over punch. It runs for 19.5 km and averages a moderate 3.74%, lifting you from a start elevation of 149 m to a summit at 880 m. On paper that is a net gain of 731 m, while the recorded total ascent comes in slightly lower at 707 m — a sign the road includes a few brief flat or descending stretches that break up the effort. With a maximum gradient of 7.74%, nothing here is savage, but the sheer distance means the meters add up relentlessly. This is a climb of accumulation, not attrition.

How the Gradient Unfolds

The defining number is the gap between the 3.74% average and the 7.74% maximum. That spread tells you the climb is uneven rather than uniform: long ramps at or below the average, punctuated by a handful of steeper pitches that briefly double the effort. Because the total ascent (707 m) sits 24 m below the net gain (731 m), you can expect at least one section that gives elevation back before clawing it up again. Practically, that means you will rarely settle into a single rhythm for the full 19.5 km. Instead you tick through shallow drags, ease over the flatter respites, and then re-engage on the sharper kicks toward the harder gradient. Read the road ahead and treat each steep pitch as a discrete effort.

Pacing Notes

At nearly 20 km, Estenalles is an exercise in restraint. The overall 3.74% grade sits in tempo territory for most riders, so the goal is to hold a sustainable power that you could carry for the better part of an hour. Anchor your effort to your FTP: aim to ride the shallow majority of the climb comfortably below threshold, then allow yourself to push up toward it only on the 7.74% pitches, backing off again once the road eases. If you do not know your threshold, run the numbers through the FTP estimator before you go — pacing 19.5 km on feel alone is how riders blow up two-thirds of the way to the 880 m summit. Bank nothing early; the length is the difficulty here.

Gearing

The moderate average is deceptive over 731 m of climbing, and fatigue turns a 7.74% ramp late in the climb into a much bigger ask than it looks. A compact chainset paired with a wide-range cassette is the sensible default. A 34×32 gives most riders enough range to spin the steeper pitches without grinding, and if you favour a higher cadence, run out of legs late, or carry extra load, a 34×34 buys you that extra margin to keep turning smoothly all the way to the top. On a climb this long, a spare gear in reserve is worth more than the weight it costs.

Summary

Coll d'Estenalles is a distance climb: 19.5 km of mostly moderate gradient with just enough steep pitches to keep you honest. Pace it conservatively, respect the length, and gear low enough to spin — the summit at 880 m comes to those who ration their effort.

Length: 19.5 km
Average gradient: 3.74%
Max gradient: 7.74%
Start: 149 m
Summit: 880 m
Net gain: 731 m
Total ascent: 707 m
Category: 2