Col de Torrent

Col de Torrent cycling climb profile

Col de Torrent is an HC climb built around duration more than headline average gradient. On paper, 34.5 km at 5.3% can look manageable, but the key number is the vertical load: 1,829 m of net elevation gain from a start elevation of 512 m to a summit elevation of 2,341 m. That is a long time spent pedaling uphill, and the climb asks for discipline well before it asks for aggression.

The total ascent is 1,844 m, only slightly above the net gain. That matters because it suggests the road does not give much back. This is not a profile defined by repeated descents or big recovery valleys. Even when the gradient eases, the work likely continues, and the rider who treats the average gradient as permission to ride above threshold early is setting up a costly final section.

How the gradient should feel

The 5.3% average points to a climb that is broadly rideable for long stretches, but the 18.83% maximum changes the pacing equation. A climb with this much length and that kind of maximum ramp is not steady in the pure time-trial sense. The steepest pitches will force torque, break rhythm, and punish riders carrying too much fatigue into them.

That combination creates a simple tactical problem: the easy sections are where the climb is lost, not won. If you over-press on the more moderate gradients, the 18.83% ramps become survival efforts instead of short interruptions. The correct ride is to keep the early and middle parts controlled, let the gradient dictate cadence changes, and avoid turning every steeper pitch into an attack on your own legs.

Pacing and gearing notes

This is a climb to pace from the summit backward. With 34.5 km of climbing and 1,829 m of net gain, the first priority is keeping aerobic cost under control. Ride the opening phase at a level that feels almost too patient, because the altitude change and accumulated muscular load will make the same power feel more expensive later.

A low climbing gear is not optional here. The 18.83% maximum means there will be moments where cadence can collapse if the gearing is too ambitious. Choose a setup that lets you stay seated through steep ramps when possible, because standing repeatedly on a climb this long can turn small accelerations into a steady drain.

If using power, anchor the ride around sustainable climbing effort rather than chasing speed. If riding by feel, keep breathing controlled on the steadier gradients and save the deeper efforts for the steepest pitches. For riders setting targets, this is a good climb to think in terms of /glossary/ftp durability rather than peak power. The rider who still has a usable gear and a controlled effort near 2,341 m will have paced it correctly.