Passo del CaRRaio

Overview

Passo del Carraio is a category 2 climb that covers 9.5 km at an average gradient of 5.25%. From a base at 254 m it tops out at 753 m, a summit that puts a net 499 m of elevation between you and the start. Categorised as a 2 — harder than a 3 or 4, but short of the marquee category 1 and hors catégorie tests — it sits in the sweet spot where a steady, sustainable effort is rewarded and over-eagerness is punished. Nothing about the average hints at extremes, yet a maximum pitch of 11.57% means the road is far from uniform.

How the Gradient Unfolds

The headline figure is that 5.25% mean, but a 9.5 km climb rarely holds a single number for long. With a maximum of 11.57%, the steepest ramps are more than double the average, so the ascent trades gentler drags against sharper kicks to arrive at its overall figure. Expect the profile to breathe: sections that let you settle into a rhythm, punctuated by pitches that force you out of the saddle or down a cog. Because the net gain of 499 m is spread across 9.5 km, no single wall defines the climb — instead it is the accumulation, ramp after ramp, that builds the total. Reading the road ahead and anticipating where the gradient bites is worth more here than raw power.

Pacing Notes

On a climb of this length, discipline beats bravado. Anchor your effort to a percentage of your FTP and hold it steady rather than surging on every rise. A climb this size will typically take the better part of an hour for many riders, so the goal is a sustainable ceiling you can defend to the summit at 753 m, not a heroic opening that fades by halfway. Save a little for the 11.57% pitches, where a fixed power target naturally translates into a slower, higher-torque grind. If you are unsure what number to target, run your figures through the FTP estimator and pace to a threshold you can actually hold.

Gearing

For a 9.5 km climb averaging 5.25% with ramps to 11.57%, prioritise a low enough bottom gear to spin rather than grind. A compact 34-tooth inner chainring paired with a 34×32 cassette gives most riders enough range to keep cadence up on the average slopes and survive the steep sections without stalling. If you climb at lower cadence, carry extra weight, or simply want insurance for the 11.57% pitches near the top when the legs are tired, step up to 34×34. The extra sprocket costs little and buys a meaningful margin over 499 m of climbing.

Summary

Passo del Carraio is an honest, rhythmic category 2 climb: long enough to demand pacing, steep enough in places to demand respect. Meter it against your threshold, gear low enough to keep spinning, and let the 499 m of net gain come to you rather than chasing it.

Length: 9.5 km
Average gradient: 5.25%
Max gradient: 11.57%
Start: 254 m
Summit: 753 m
Net gain: 499 m
Total ascent: 481 m
Category: 2