Col de Clavel

Col de Clavel cycling climb profile

Col de Clavel is not defined by one savage ramp. It is defined by duration. At 29.9 km, with an average gradient of 3.29%, this French Category 2 climb asks less about whether you can survive a steep pitch and more about whether you can keep a disciplined aerobic rhythm for a long time.

The climb starts at 203 m and tops out at 1,186 m, giving a net elevation gain of 983 m. The total ascent is 1,039 m, which matters. That figure being higher than the net gain tells you the road is not a perfectly clean, constant rise from bottom to summit. There are likely small interruptions in the climbing rhythm, but they do not change the main demand: this is a long uphill effort where accumulated work is the real difficulty.

How the gradient rides

The 3.29% average makes Col de Clavel look manageable on paper, and for most riders the lower gradient will allow seated climbing and a steady cadence rather than repeated out-of-the-saddle fighting. But the maximum gradient reaches 7.37%, so the climb is not simply a long false flat. The harder sections are not extreme in isolation, but they become more consequential because they are embedded inside nearly 30 km of climbing.

That combination creates a specific tactical problem. If you ride the shallow parts too hard because they feel easy, the steeper ramps become where the bill arrives. The correct approach is to treat the lower gradient as a pacing opportunity, not permission to drift above threshold. On a climb this long, small early excesses compound.

Pacing and gearing notes

Start conservatively. The average gradient encourages speed, but the length means this is closer to a sustained endurance climb than a short power climb. Riders pacing by /glossary/ftp should avoid chasing speed on the gentler sections and instead hold a repeatable effort that still leaves room for the 7.37% ramps.

Gearing should be chosen for control, not ego. You may not need an ultra-low climbing setup for the average gradient, but you do need a gear that lets you stay smooth when the road tips toward its maximum. If your lowest gear forces you to grind on those steeper sections, fatigue will build faster than the profile suggests.

The best way to ride Col de Clavel is to keep the effort narrow: steady on the easier gradients, composed on the steeper pitches, and patient all the way to 1,186 m. It is a climb that rewards restraint early and punishes riders who confuse a modest average gradient with an easy day.