Bocca Saval

Overview

Bocca Saval is a hors catégorie climb that earns its rating without apology. Over 14.4 km the road drags you from a valley floor at 75 m all the way to a 1729 m summit, a net gain of 1654 m. That works out to an average gradient of 11.51%, a figure most climbs only touch on their steepest single ramp. Here it is the baseline. With a total ascent of 1642 m packed into that distance, there is almost no flat and almost no relief — the mountain simply keeps rising.

How the Gradient Unfolds

The defining feature of Bocca Saval is relentlessness. An 11.51% average across 14.4 km means the climb rarely dips into gradients where you can recover in the saddle. Because the average is already double digits, the pitches above it bite hard, culminating in a peak slope of 34.52% — a wall steep enough to threaten traction and force the front wheel light. The gap between the 11.51% average and that 34.52% maximum tells you the story: long sustained stretches punctuated by ramps that spike violently. Expect to be out of the saddle repeatedly, not for style but for survival, then settling back into a grinding rhythm as the road eases back toward its punishing mean.

Pacing Notes

On a climb this steep and this long, pacing is everything. Nearly 1654 m of vertical gain over 14.4 km will expose any rider who starts too hard. Anchor your effort to your FTP and hold a sustainable percentage of it through the early kilometres, because there is no downhill to bail you out later. The 34.52% ramp will spike your power far above threshold whether you like it or not, so bank patience everywhere else to absorb those surges. If you are unsure of your numbers, run them through the FTP estimator before you commit to a target. Fuel early and often — a climb pushing past an hour of near-continuous effort drains glycogen faster than the summit reveals itself.

Gearing

Do not under-gear this mountain. With an 11.51% average and a 34.52% maximum, standard compact setups will leave you mashing squares. A 34×32 is the sensible floor for strong climbers, but on a slope that touches 34.52% even that can feel tall when the road kicks. If you have any doubt about your climbing legs, fit a 34×34 or wider and keep a spinning cadence in reserve for the walls. The extra range costs nothing on the easier pitches and saves your knees — and your day — when Bocca Saval bares its teeth.

Summary

Bocca Saval is a pure test of sustained climbing: no tricks, no rest, just gradient and gravity. Come with low gears, disciplined pacing, and full fuel stores, and the 1729 m summit is a reward worth every metre of the 1654 m you climb to reach it.

Length: 14.4 km
Average gradient: 11.51%
Max gradient: 34.52%
Start: 75 m
Summit: 1729 m
Net gain: 1654 m
Total ascent: 1642 m
Category: HC