Giogo del Maniva

Overview

Giogo del Maniva is a full hors catégorie (HC) climb — the hardest rating there is, sitting above categories 1 through 4. It runs 13.3 km from a start elevation of 386 m to a 1731 m summit, delivering 1345 m of net elevation gain. Include the rollers and dips, and the total ascent stretches to 1362 m. The headline number is the 10.12% average gradient: sustained double-digit steepness over the better part of an hour for most riders. This is not a climb you settle into casually — it demands respect from the first pedal stroke.

How the Gradient Unfolds

The math tells the story. A 10.12% average across 13.3 km means there is nowhere to genuinely recover; even the "easier" stretches sit close to the mean. What makes Maniva brutal is the spike: a 33.17% maximum gradient. That is a wall — the kind of ramp where momentum evaporates and cadence collapses. With an average this high, the climb offers few flat plateaus to redistribute effort, so every steep pitch above the mean has to be paid for on a section that is only marginally shallower. The 17 m difference between net gain (1345 m) and total ascent (1362 m) tells you the profile is very nearly all up, with only trivial descending to break the rhythm. Expect a grind that steepens rather than relents as you climb toward 1731 m.

Pacing Notes

On a climb averaging 10.12%, discipline beats bravado. Anchor your effort to your FTP and hold something in reserve for the 33.17% pitch, which will force a surge no matter how evenly you meter the rest. Riding above threshold early on a 13.3 km wall is the classic way to blow — the last third at this gradient is unforgiving. If you are unsure of your numbers, run them through the FTP estimator before you commit to a target. A realistic plan: sit just under threshold on the sustained sections, accept a brief spike over the steepest ramp, and settle back down. With 1345 m to gain, patience is the fastest strategy.

Gearing

Gear for survival, not pride. A 10.12% average with a 33.17% max means compact-and-wide is the sensible baseline. A 34×32 is the minimum most fit riders should consider here, and even then the 33.17% ramp will have you out of the saddle at low cadence. If you have any doubt about your climbing legs or want to protect them across 13.3 km, go to a 34×34 — the extra range is cheap insurance against grinding to a halt on the steepest pitch. Riders who spin comfortably and can hold torque at low rpm will thank themselves for the easier ratio long before the 1731 m summit.

Summary

Giogo del Maniva is a genuine HC test: relentlessly steep, barely relenting, and topped by a wall that punishes anyone who arrives with empty legs. Pace to your threshold, gear low, and treat the 33.17% ramp as the crux it is.

Length: 13.3 km
Average gradient: 10.12%
Max gradient: 33.17%
Start: 386 m
Summit: 1731 m
Net gain: 1345 m
Total ascent: 1362 m
Category: HC