Col de l'Épinac

Overview

The Col de l'Épinac is a Category 3 climb in France that covers 8.1 km from base to summit, rising 327 m net with a total ascent of 363 m — the slight discrepancy between those two figures signals there are minor undulations along the route rather than a clean, unbroken grind upward. The average gradient sits at 4.06%, which on paper reads as gentle. The 10.48% maximum gradient tells a different story.

How the Climb Feels

At 4.06% average, the Col de l'Épinac belongs to the category of climbs that punish riders who mistake a modest mean for a uniform slope. The gap between average and maximum — more than 6 percentage points — means the gradient is distributed unevenly. Expect stretches that feel genuinely flat or even slightly downhill, followed by ramps that briefly spike well above the overall figure.

The total ascent (363 m) being higher than the net gain (327 m) confirms this: you will cede a small amount of elevation somewhere on the way up before the road kicks back upward to the summit at 541 m. Factor that in mentally. Recovered legs arriving at a false flat will face a sharper pitch shortly after.

Gradient Breakdown

• Length: 8.1 km
• Net elevation gain: 327 m
• Total ascent: 363 m
• Average gradient: 4.06%
• Maximum gradient: 10.48%
• Start elevation: 214 m
• Summit elevation: 541 m

The 10.48% maximum is enough to force a gear change on anyone who has been spinning comfortably at tempo on the easier sections. If your cadence has crept up on a relaxed ramp, you need to anticipate the steep pitches early — shifting late on a sudden 10%+ wall wastes momentum and stresses the drivetrain.

Pacing Notes

The moderate average makes this climb approachable, but that can lure riders into going out too hard on the easier sections. A few practical points:

• Don't anchor your effort to the 4.06% average. Treat the shallow sections as recovery or tempo, not as an invitation to push deep into your FTP.
• Reserve something for the sharp pitches. With a max of 10.48%, any steep section will cost significantly more energy per metre than the average suggests.
• Watch total ascent vs net gain. The 36 m difference means at least one section gives back elevation. Use those downhill or flat interludes to soft-pedal briefly and reset breathing before the gradient resumes.
• Cadence management matters. On the steep ramps, a higher cadence (90+ rpm) is preferable to grinding a big gear, which accumulates fatigue rapidly on a climb of this length.

Gearing Advice

For most riders, a compact chainset (50/34) paired with an 11-28 or 11-32 cassette covers the full gradient range comfortably. The 4.06% average won't demand the smallest gear for long, but the 10.48% max will — particularly if legs are already loaded from earlier riding. If you're using this climb mid-route rather than as an isolated effort, err toward the easier end of your cassette on the steeper ramps rather than grinding through them.

Not sure where your FTP sits before benchmarking this climb? Use the FTP Estimator to calibrate your target power zones before you set off.