col du Paradis

Overview

The Col du Paradis is a Category 3 climb in France, covering 6.6 km from base to summit. Starting at 349 m elevation, the road gains 286 m net to reach the summit at 635 m — though the total ascent of 390 m signals that the road isn't purely linear. There are undulations baked into the profile, meaning you're likely climbing more than the net figure suggests at certain points.

At 4.33% average gradient, this is not a climb that demands extraordinary fitness to complete. What it does demand is focus, because the maximum gradient of 11.65% is more than double the average. Those spikes — wherever they fall across the 6.6 km — can destabilize an otherwise comfortable effort if you arrive at them already pushing too hard.

How the Climb Rides

The gap between average (4.33%) and maximum (11.65%) gradient is the defining feature of this profile. The extra 104 m of total ascent versus the 286 m net gain confirms the road has some descent or flat sections woven in. Expect a rhythm that occasionally resets — easier stretches that tempt you to push, followed by sharper ramps that punish overconfidence.

The steepest pitches, wherever they appear, are likely brief but meaningful. An 11.65% ramp on otherwise moderate terrain feels disproportionately hard if you've been riding above your sustainable pace on the gentler sections before it.

Pacing Notes

• Anchor your effort to the average, not the maximum. A steady output around the 4–5% gradient equivalent of your FTP is appropriate for most of this climb.
• Resist accelerating on the flatter or descending sections. The total ascent figure suggests these exist. Use them to recover, not to bank time you'll lose on the next ramp.
• Reserve something for the steepest pitches. At 11.65%, even a short wall will push your power output sharply upward. If you can identify where the steep sections fall on a GPS profile before riding, do so.
• Treat this as a tempo effort, not a threshold effort, unless you're racing or targeting a specific segment time. The Category 3 rating reflects the moderate overall demand, not the spikes.

Gearing Notes

For most riders, a standard compact chainset with a mid-range cassette is sufficient here. The 4.33% average doesn't require ultra-low gearing, but the 11.65% maximum gradient is steep enough that you'll want at least a 28t or 30t sprocket available if your legs are already under load.

• If you're on a 1x drivetrain, ensure your cassette's lower range covers the steepest pitches without forcing you to spin out on the flatter sections.
• Riders unsure of their optimal gearing for a climb like this can use the FTP estimator to gauge sustainable output relative to gradient.

Bottom Line

The Col du Paradis is a forgiving Category 3 climb on paper — 6.6 km, moderate average gradient, manageable elevation gain. The 11.65% maximum gradient is the one variable that can turn a comfortable ride into a difficult one if you're not disciplined on the approach. Ride to the average, respect the spikes, and the summit at 635 m is well within reach for most trained cyclists.