Col du Pigeonnier

Overview

Col du Pigeonnier is a Category 3 climb in France that runs 7 km from base to summit, gaining 283 m net elevation across the full ascent. The total ascent figure of 318 m — slightly higher than the net gain — indicates the road isn't a clean, uninterrupted rise; expect at least one rollback or false flat where the road dips before resuming its upward trajectory.

The average gradient sits at 4.04%, which puts this firmly in the "steady tempo" category rather than anything that demands repeated threshold efforts. At that mean pitch, most riders with a reasonable FTP will handle the climb aerobically. The danger lies in complacency.

Gradient Profile

With a maximum gradient of 10.91% somewhere on the climb, the road more than doubles its average pitch at the steepest point. That 6.87-percentage-point gap between average and maximum tells you the climb is uneven — long stretches of moderate road are punctuated by at least one genuinely sharp ramp.

A few things follow from that shape:

• The lower and middle sections are likely where the 4% average is earned back. Expect stretches that feel almost flat before the gradient bites.
• The upper ramps are where the 10.91% maximum lives. This is a common profile in French climbs: a gradual approach followed by a sting in the tail as the road kicks up toward the col proper.
• The rollback implied by the difference between net gain (283 m) and total ascent (318 m) means roughly 35 m of descending is embedded in the climb. Don't be surprised if you lose height briefly mid-climb — stay in gear and carry momentum through any dip.

Pacing Notes

Because the average gradient is moderate, there's a strong temptation to push harder than the numbers warrant early on. Resist it. The 10.91% maximum ramp will expose any pacing debt you've accumulated in the opening kilometres.

Recommended approach:

• Ride the lower two-thirds at a controlled aerobic pace — treat those kilometres as a warm-up for the steeper section above.
• When the pitch tightens toward the summit, you want reserves. If you've been riding at 75–80% of FTP on the easy sections, the steep ramp won't force a blowup.
• Use the downhill rollback to recover briefly and reset cadence before the road climbs again.

If you're unsure where your sustainable power sits, the FTP estimator can help you set a sensible ceiling before you ride.

Gearing

For the 4% average sections, a standard compact double (50/34) with an 11-28 or 11-32 cassette is more than sufficient. Where things get interesting is the 10.91% maximum ramp. Riders carrying any fatigue from earlier in a ride — or from a long approach — will want that 32-tooth or even a 34-tooth sprocket available to maintain cadence through the steep section without grinding.

• Road bike with compact gearing: 34×28 or 34×32 for the maximum ramp
• Gravel or endurance bike: Wide-range cassette means no concern at all
• Target cadence on steep ramps: 75–85 rpm; below 70 rpm on a sub-11% grade suggests undergearing or overpacing earlier

In Context

At Category 3, Col du Pigeonnier sits in the middle tier of classified climbs — harder than a Category 4 drag, easier than the sustained suffering of a Category 1 or HC ascent. It's a useful training climb for building pacing discipline precisely because its average gradient is forgiving enough to ride repeatedly, while the maximum ramp introduces a meaningful neuromuscular and aerobic challenge at the top.

For comparison with steeper French benchmark climbs, see the Alpe d'Huez profile.