Passo della Manina

Overview

The Passo della Manina is a hors catégorie climb, the hardest rating on the books, and its numbers explain why. Over 10.3 km the road lifts you from 797 m at the base to 1785 m at the summit, a net gain of 988 m. The average gradient is a punishing 9.63%, and there is no soft version of that figure — a double-digit average sustained for more than ten kilometres is the kind of effort that separates HC from everything below it. This is not a climb you ease into. It is a climb you survive by managing.

How the Gradient Unfolds

A 9.63% average tells you the climb is hard; the 21.25% max tells you it is cruel. That peak pitch is more than double the average, so the ascent is not a metronome but a series of surges. Expect stretches where the road settles near the average and other ramps that rear up well past 20% and force you out of any comfortable rhythm.

The elevation figures reinforce the shape. The net gain is 988 m, but the total ascent logs 941 m — the smaller total-ascent number signals that the profile is not a single unbroken wall. There are brief relenting sections that let the legs recover a fraction before the next ramp. Read the road ahead: the flatter moments are where you recover, the steep pitches are where you simply hold on.

Pacing Notes

On a climb this steep for this long, pacing is everything. The temptation on the opening ramps is to match the gradient with power, but a 10.3 km HC effort will punish anyone who starts above their sustainable ceiling. Anchor your effort to your FTP and hold just under threshold on the average sections, spending your matches only on the pitches toward 21.25% where staying seated is not an option.

If you do not know your threshold number, sort that out before you line up at 797 m — use the FTP estimator to get a working figure. With almost a thousand metres of climbing between you and the 1785 m summit, a disciplined effort that fades slightly is far faster than a heroic start that blows apart halfway up.

Gearing

Gear for the max, not the average. On pitches reaching 21.25%, cadence collapses fast on anything too tall, so bring the biggest cassette your frame will accept. A compact 34-tooth chainring paired with a 34×32 setup is the sensible minimum here, and most riders will be far happier with a 34×34. The extra sprocket buys you cadence exactly where the road hits its steepest ramps, and on a climb averaging 9.63% for 10.3 km, protecting your cadence protects your ability to finish. If your bike accepts a wider range still, take it — nobody regrets easier gears on an HC.

Summary

The Passo della Manina is a genuine hors catégorie test: long, unrelentingly steep, and spiked with ramps that punish poor pacing and tall gearing. Respect the average, prepare for the max, and climb to the summit within yourself.

Length: 10.3 km
Average gradient: 9.63%
Max gradient: 21.25%
Start: 797 m
Summit: 1785 m
Net gain: 988 m
Total ascent: 941 m
Category: HC