Col des Montets

Overview

Col des Montets is a Category 4 climb in France, compact enough to be over in minutes yet steep enough to punish a poor opening effort. The road gains 171 m across 2.5 km at an average gradient of 6.09%, with the pitch topping out at 8.54% at its sharpest point. Starting at 1,307 m, the climb is already well above valley level before a single pedal stroke is turned, which means thin air is a factor even on what looks like a modest ascent on paper.

Gradient Breakdown

With only 2.5 km on the clock, there is no long settling-in period. The average of 6.09% is sustained enough that riders who open too hard will feel it before the summit. The maximum gradient of 8.54% is not extreme by Alpine standards, but hitting it after already climbing at over 6% average requires respect.

• Lower slopes: The climb begins at 1,307 m. Expect gradients close to the average from the outset — there is no flat run-in to use as a launching pad.
• Upper slopes: The steepest pitches, peaking at 8.54%, likely appear in the final third. At this altitude, even a short surge at close to 9% will spike your heart rate noticeably.
• Summit: The col tops out at 1,458 m. The elevation gain of 171 m is modest, but the brevity of the climb means that gain is delivered at a consistent, unrelenting rate.

Pacing Notes

Because the climb is short, some riders treat it as an all-out effort from the base. That approach works if you are racing or testing threshold power, but even then, a small negative split — slightly easier in the first kilometre and progressively harder to the top — tends to produce cleaner power numbers and faster times.

For riders doing Col des Montets as part of a longer day in the mountains, the temptation to attack it must be weighed against what comes next. Burning a match here when there are bigger passes ahead is rarely worth it.

Gearing

At 6–8.5% and starting above 1,300 m, a compact chainset (50/34) paired with an 11-32 or 11-34 cassette gives most riders comfortable cadence options across the full gradient range. Riders running a standard double (53/39) should be confident they can sustain the upper gradients at a cadence that does not load the knees — if you find yourself grinding below 70 rpm on the steeper pitches, the gear is too big. Use the FTP estimator to get a sense of what sustainable power looks like for you before committing to a gearing setup.

What to Expect on the Road

Col des Montets sits in a well-travelled part of the French Alps. Road surface quality is generally reliable on passes in this region, though conditions vary by season and recent weather. The climb is short enough that traffic management is rarely disruptive, but the road carries a mix of cyclists, motorcycles, and touring vehicles, so line choice on any tighter corners warrants attention.

For a Category 4 rating, Col des Montets punches with quiet efficiency. Short, consistent, and unforgiving of wasted effort — treat it accordingly.