Còth de Varradòs

Overview

Còth de Varradòs is one of those climbs whose numbers stop you cold. Over 14.2 km it averages a savage 12.16%, dragging you from a valley floor at 709 m all the way up to a 2430 m summit. That is 1721 m of net elevation gain, with 1679 m of total ascent packed into the effort. There is almost nothing about this profile that offers relief: an average above 12% sustained for the better part of fifteen kilometres puts it firmly in hors catégorie (HC) territory, the hardest rating there is. If you have circled it on a route sheet, treat it with the respect a wall of this size deserves.

How the Gradient Unfolds

The defining feature here is consistency, not spikes. When a 14.2 km climb averages 12.16%, there is simply nowhere for easy sections to hide — the math forces the whole road to sit near that number. A net gain of 1721 m against 1679 m of total ascent tells you the same story: the descents and flat recoveries that would normally pad out total ascent above net gain barely exist. In other words, almost every metre you climb, you keep. Expect the grade to settle into a punishing rhythm early and hold it. From 709 m the air is still thick, but by the time you approach 2430 m near the top, the thinner air compounds every percentage point. Plan your effort around a road that never truly lets go.

Pacing Notes

On a climb this long and this steep, pacing is survival. Aim to ride the lower slopes well below threshold — your FTP should feel like a ceiling you rarely touch, not a target. At a sustained 12.16% you cannot coast to recover, so any surge you make must be paid back at altitude. If you are unsure of your numbers, run them through the FTP estimator before you commit to a wattage plan. Ride the first several kilometres conservatively, keep your cadence from collapsing, and save whatever you have for the final push toward 2430 m, where the thin air will quietly tax you more than the gradient alone suggests.

Gearing

Do not under-gear this one. A sustained 12.16% average over 14.2 km will expose any drivetrain that is too tall. For most riders a compact 34-tooth chainring paired with a wide cassette is the minimum sensible setup: a 34×32 will get strong climbers up, but a 34×34 gives you the extra margin that keeps your cadence alive when the grade bites deep and your legs are 1721 m into the effort. If your bike accepts an even larger sprocket, take it — spinning a low gear beats grinding a high one every time on a climb rated HC.

Summary

Còth de Varradòs is a pure test of sustained climbing: relentless gradient, high altitude, and no meaningful respite from bottom to top. Gear low, start easy, and pace for the summit.

Length: 14.2 km
Average gradient: 12.16%
Max gradient: n/a
Start: 709 m
Summit: 2430 m
Net gain: 1721 m
Total ascent: 1679 m
Category: HC