Ciampei Pass

Overview

Ciampei Pass is a long, high-altitude category 1 climb that trades brutal steepness for relentless duration. Over 33.5 km the road lifts you from a valley floor at 544 m to a summit at 2083 m — a net gain of 1539 m. The average gradient is a deceptively mild 4.6%, but that figure hides the real story: a climb this long at altitude is a test of patience, fueling and steady power far more than raw punch. With a max gradient of 18.24%, there are moments that demand respect, but the overwhelming character here is endurance.

How the Gradient Unfolds

The 4.6% average is a blended number, not a constant. Across 33.5 km you should expect long stretches that sit below the average — false flats and gentle drags where you can settle into a rhythm — punctuated by sharper pitches that spike toward the 18.24% maximum. Those steep ramps are the moments to watch: they arrive as brief, sharp shocks against an otherwise measured gradient. Because the summit sits at 2083 m, the final kilometres also thin the air, so the same wattage costs you more the higher you climb. Treat the closing section as harder than the raw percentage suggests.

Pacing Notes

On a climb of this length, discipline beats bravado. Anchor your effort to your sustainable threshold rather than chasing the steep ramps. A good rule of thumb is to hold a touch under your FTP for the bulk of the climb, saving a small reserve for the steepest pitches near the 18.24% max and the thin air toward 2083 m. If you don't already know your number, run it through the FTP estimator before you commit to a target power. With 1539 m of climbing to absorb, going too deep in the opening kilometres is the classic error — the road simply doesn't relent long enough to recover.

Gearing

Length plus altitude is the argument for gearing on the generous side. Even though 4.6% average sounds forgiving, you'll be turning the pedals for a long time and hitting ramps up to 18.24% with tired legs. For most riders a compact chainset paired with a wide-range cassette is the sweet spot: a 34×32 will get many climbers up comfortably, but if you value cadence or expect to arrive fatigued, a 34×34 gives you that extra margin on the steepest sections near the top. When in doubt on a climb this sustained, choose the easier ratio — spinning a 34×34 protects your legs across all 33.5 km far better than grinding a stiffer gear.

Summary

Ciampei Pass rewards steady heads. It is not a savage wall but a marathon: 33.5 km of climbing, capped by high-altitude air and occasional steep ramps, that asks you to meter your effort from the very first pedal stroke. Pace it well, gear it generously, and the 2083 m summit is a satisfying prize.

Length: 33.5 km
Average gradient: 4.6%
Max gradient: 18.24%
Start: 544 m
Summit: 2083 m
Net gain: 1539 m
Total ascent: 1487 m
Category: 1