Alto de Ceias

Overview

Alto de Ceias is a category 2 climb that runs for 9 km, lifting you from a start elevation of 339 m to a summit of 802 m. That works out to a net elevation gain of 463 m and a total ascent of 453 m, the small gap between the two telling you there is a touch of downhill or flat mixed into the drag upward. The average gradient sits at 5.16%, a figure that reads as steady rather than savage, but the 12% max gradient is the number that will define how the effort actually feels in your legs. This is a climb of honest length where the challenge is sustained rather than explosive.

How the Gradient Unfolds

The math tells a story of two personalities. A 9 km climb with only 453 m of total ascent averages out to that friendly 5.16%, yet a 12% max gradient means the slope more than doubles the average at its steepest. Because the net gain of 463 m slightly exceeds the total ascent of 453 m, the profile is not a single unbroken ramp — there are sections where the road eases or even tips down, which then have to be repaid with steeper pitches elsewhere. Expect the gradient to breathe: shallow stretches where you can find rhythm, punctuated by ramps that spike toward that 12% ceiling. Reading the road ahead matters more here than raw power.

Pacing Notes

Nine kilometres at 5.16% is a threshold-style effort, so anchor your pacing to your FTP rather than chasing the steep ramps. Ride the shallower opening within yourself and keep something in reserve for the 12% pitches, where surging costs far more than it gains. If you do not know your threshold number, run your recent data through the FTP estimator before you go, then hold a wattage you can sustain across the full 9 km. The goal is to arrive at the steepest sections with headroom, not to blow apart on them and limp the final metres to 802 m.

Gearing

For a climb that averages 5.16% but ramps to 12%, gearing is about protecting your cadence on the hardest pitches. A compact chainring paired with a wide-range cassette is the sensible starting point. A 34×32 will get most riders over the 12% ramps while still feeling efficient on the shallower 5.16% stretches. If you are carrying fatigue, riding a loaded bike, or simply prefer to spin, a 34×34 buys you extra breathing room on those steep sections and keeps your legs turning over the full 463 m of climbing. Either way, favour a lower gear than you think you need — spinning up 12% beats grinding it.

Summary

Alto de Ceias rewards patience: a 9 km category 2 climb with a steady 5.16% average, spiked by a 12% max that keeps it interesting. Pace to your threshold, gear low, and let the 463 m of vertical come to you.

Length: 9 km
Average gradient: 5.16%
Max gradient: 12%
Start: 339 m
Summit: 802 m
Net gain: 463 m
Total ascent: 453 m
Category: 2