Passo Pelagatta

Overview

Passo Pelagatta is a long-haul category 1 ascent that trades savage steepness for sheer duration. Over 38.3 km the road lifts you from a valley floor at just 46 m all the way to a 1769 m summit — a net gain of 1723 m. The average gradient reads a modest 4.49%, but that number hides the real character of the climb: this is an endurance effort measured in the better part of an hour or more, where the meters accumulate quietly and relentlessly rather than in violent, leg-breaking ramps.

The headline figures tell the story. A total ascent of 1708 m across such a long distance means the climbing is spread thin, but a max gradient of 15.77% confirms that the road is not uniformly gentle. Somewhere in those 38.3 km sits a wall steep enough to demand respect.

How the Gradient Unfolds

Do the arithmetic and the shape becomes clear. An average of 4.49% over 38.3 km is the kind of number that lulls you in — it feels like a false flat you could ride all day. But averages are deceptive. With a peak of 15.77%, the climb clearly stacks easier kilometers against a handful of sharp pitches more than three times the average.

The gap between the 1723 m net gain and the 1708 m total ascent is small, which tells you the road climbs almost continuously — there is very little downhill giveback to erase your hard-won altitude. Expect long, steady drags punctuated by steeper kicks. When the gradient jumps toward that 15.77% ceiling, your average speed will collapse; when it eases back below 4.49%, you can recover and roll.

Pacing Notes

On a climb this long, discipline beats bravado. The single biggest mistake is chasing the early, gentle kilometers too hard and arriving at the steep sections already cooked. Anchor your effort to your FTP and aim to sit just below threshold on the shallow stretches, holding tempo rather than surging.

If you do not know your threshold, get an estimate first with the FTP estimator. Because the road rarely gives back altitude, there is no coasting recovery — your recovery comes from the flatter grades, not from descents. Meter your matches: save headroom for the 15.77% pitches, where staying seated and spinning will cost far less than a forced-out-of-the-saddle grind. Fuel early and often; an effort spanning 38.3 km and 1723 m of vertical is decided as much by nutrition as by watts.

Gearing

Gear for the steep pitches, not the average. While 4.49% sounds friendly, the 15.77% maximum is where your setup earns its keep. A compact 34-tooth chainring paired with a 34×32 cassette is a sensible baseline for strong riders who can turn a bigger gear at low cadence. For most, a 34×34 is the smarter, knee-saving choice — the extra range lets you keep spinning through the steepest ramp near the summit without stalling. On a climb of this length, protecting your cadence over 38.3 km matters more than any imagined pride in a taller gear.

Summary

Passo Pelagatta rewards patience. It is not the steepest climb you will meet, but at 38.3 km and 1723 m of gain it is one of the longest sustained efforts a category 1 label can hold. Pace it evenly, gear it low, and let the summit come to you.

Length: 38.3 km
Average gradient: 4.49%
Max gradient: 15.77%
Start: 46 m
Summit: 1769 m
Net gain: 1723 m
Total ascent: 1708 m
Category: 1