Pas de Peyrol

Overview

Pas de Peyrol is a Category 1 climb in France, starting at 892 m elevation and finishing at a summit of 1,582 m. The road covers 9 km from base to top, accumulating 690 m of net elevation gain — with total ascent reaching 770 m, which signals there are undulations rather than a clean, unbroken rise throughout. At an average gradient of 7.64%, it sits firmly in the demanding range, but the headline figure that defines this climb is the 29.28% maximum gradient. That number belongs to a different conversation entirely.

How the Gradient Unfolds

The gap between the average (7.64%) and maximum (29.28%) gradient tells the real story here. This is not a climb that deals in consistency. Expect extended stretches where the road sits at a manageable — if persistent — pitch, punctuated by ramps that can briefly triple or quadruple the average angle underfoot.

• Lower slopes: Starting at 892 m, the opening kilometres tend to give riders a chance to find rhythm. Resist the temptation to push hard early — the elevation gain compounds.
• Mid-section: This is typically where Pas de Peyrol begins to assert itself. The gradient tightens, and any fatigue carried from the lower slopes becomes expensive.
• Upper ramps: The maximum gradient of 29.28% occurs somewhere on the upper portion. At this pitch, forward momentum nearly stops. Even compact gearing can run out of road here for riders who haven't managed their effort carefully.

The additional 80 m between net gain and total ascent (690 m vs 770 m) confirms the road rolls in places. Don't treat those brief recoveries as rest — use them to reset breathing and lower heart rate before the gradient reasserts.

Pacing Notes

With a 9 km climb averaging 7.64%, most riders should budget for a sustained effort in the range of your threshold pace — but the irregular gradient demands power management rather than fixed-wattage riding.

Key principles:

• Don't anchor to the average. 7.64% is a blended number. Riding the whole climb at your "7% effort" will see you blow up on the steep ramps above that average.
• Treat the steep sections as surges to absorb, not attacks to match. Spike briefly, recover quickly. Trying to sustain power through a 20%+ ramp for more than a few seconds at threshold will compromise the remainder of the climb.
• The 29.28% sections require out-of-saddle technique. Keep weight over the front wheel to prevent it from lifting, and drive through a smooth pedal stroke rather than mashing.
• Use the undulations. Where the road momentarily flattens or dips, allow heart rate and perceived effort to come down. Don't accelerate through these sections.

Gearing

For a climb with a near-30% maximum gradient, conservative gearing is not optional — it's practical.

• A 34×32 or 34×34 low gear is strongly advisable.
• Riders on 1x drivetrains should confirm their cassette range covers at least a 32-tooth sprocket.
• Even fit climbers with strong FTP numbers will find a 29.28% ramp near-impossible to spin at any cadence above 50–55 rpm in anything short of the lowest available gear.

If you're unfamiliar with how your gearing translates to cadence and speed on steep gradients, the FTP estimator can help you model your power requirements before the day.

Summary

Pas de Peyrol is a Category 1 climb that earns its rating honestly. The 9 km distance and 7.64% average make it a sustained test; the 29.28% maximum gradient makes it a tactical one. Conserve through the moderate sections, absorb the steep ramps without panicking, and arrive at the 1,582 m summit with something left — because this climb will take everything you give it.