Alto de La Cuche

Alto de La Cuche cycling climb profile

Alto de La Cuche is a Category 1 climb that asks for discipline more than theatrics. The headline figures are straightforward: 15.5 km in length, an average gradient of 7.17%, a maximum gradient of 12.53%, and a rise from 1576 m to 2689 m. The supplied profile lists 1113 m of net elevation gain and 1094 m of total ascent, which tells you the day is defined by sustained climbing load rather than short, isolated efforts.

How the gradient rides

With no detailed sector breakdown provided, the safest way to read this climb is as a long, steady effort with sharper ramps embedded inside it. An average of 7.17% over 15.5 km is already hard enough to put most riders into a sustained threshold or sub-threshold rhythm. The key detail is the 12.53% maximum gradient. That number matters because it means the climb is not simply a metronomic drag from bottom to summit. Somewhere on the road, the gradient steepens enough to force a gear change, break rhythm, and expose anyone who has started too hard.

The vertical profile also matters physiologically. Starting at 1576 m and topping out at 2689 m, Alto de La Cuche finishes high enough that the upper portion should be treated with respect. Even without assuming anything beyond the supplied elevation numbers, the combination of altitude gain and sustained gradient means the climb becomes increasingly expensive as fatigue accumulates.

Pacing and gearing

The correct approach is to ride the opening kilometres below ego pace. On a 15.5 km climb averaging 7.17%, the cost of going over your sustainable effort early is not paid immediately - it arrives later when the road kicks toward its maximum gradient and there is still climbing left to do.

Practical pacing notes:

• Settle into a controlled effort from the base rather than chasing speed.
• Use FTP or perceived threshold as a ceiling, not a target, until the climb is well established.
• Keep a bailout gear available for the 12.53% sections, because grinding there will raise muscular cost quickly.
• If riding with a power meter, avoid repeatedly spiking above target on the steeper ramps. The average gradient is hard, but the variability is what can empty the tank.

Bottom line

Alto de La Cuche is a classic sustained climbing test: long enough to require pacing, steep enough on average to demand real climbing fitness, and with maximum ramps that punish riders who treat it like a steady tempo road. Ride it patiently, protect cadence, and save the harder effort for the final part of the ascent rather than spending it at the bottom.