Sella Carnizza

Overview

Sella Carnizza is a Category 1 climb in Italy that packs serious vertical into a short distance. It runs 7.3 km from a start elevation of 354 m to a summit at 1111 m, for a net elevation gain of 757 m. At a 10.38% average gradient across that length, it sits firmly in the tier of ascents that reward specific preparation rather than raw fitness alone.

The number to watch is the gap between net gain and total ascent. You climb 757 m net, but the road actually gains 858 m of ascent — roughly 101 m of that is clawed back after brief descents or false flats along the way. That undulation matters: every metre you drop is a metre you re-climb, often on a fresh steep pitch. The rolling profile means the true effort is higher than the net figure suggests, and it disrupts any rhythm you try to settle into.

How the Gradient Unfolds

A 10.38% average is already steep, but averages smooth over the spikes. The real story is a maximum gradient of 27.25% — a wall that far exceeds the mean and will define your lowest gear. Sections easing off toward the average will feel almost restful by comparison, which is exactly how these climbs bait you into over-spending early.

Expect the profile to break down roughly like this:

• Short recovery or false-flat sections where the descents cost you the extra ascent baked into that 858 m total
• Repeated steep pitches that reset your legs each time you clear a dip
• One decisive ramp approaching 27.25% — the crux that governs everything about your setup

Pacing Notes

On an undulating climb like this, chase even effort, not even speed. Your pace will swing wildly between the recovery dips and the near-27% ramps, and trying to hold a constant speed will blow you up on the steep pitches. Anchor your effort to a sustainable power output you can hold for the full 7.3 km, and let the gradient dictate your cadence.

Because the road gives back and then re-climbs those 101 m, resist surging over each false flat — spin easy through the dips and save the effort for the walls. If you do not know your ceiling, run the FTP estimator first and pace off a realistic number rather than a hopeful one.

Gearing

The 27.25% maximum ramp governs your gearing choice, full stop. On a pitch that steep you need a compact or sub-compact chainset paired with a wide-range cassette — think 34×32 or 34×34 as a floor, not a ceiling. Anything narrower and you will be grinding a lever-snapping cadence or walking. Check your setup before the ride: confirm the cassette, verify the derailleur can wrap it, and shift into your bailout gear once before you actually need it.

Summary

• Length: 7.3 km
• Average gradient: 10.38%
• Maximum gradient: 27.25%
• Net elevation gain: 757 m
• Total ascent: 858 m
• Category: 1

Sella Carnizza is short but uncompromising: a Category 1 wall where the undulation and the 27.25% ramp punish anyone who paces by feel alone. Gear low, pace by effort, and it becomes a climb you finish rather than survive.