Alto de Torres

Overview

Alto de Torres is a serious Category 1 climb: 10.8 km of near-continuous uphill that lifts you from 610 m at the base to a 1407 m summit. That is a net gain of 797 m, and the average gradient of 7.35% means there is almost nowhere to hide. This is not a climb of a few savage ramps bracketed by recovery — it is a sustained grind that asks the same steady question of your legs for the better part of an hour. With a maximum pitch of 10.9%, the hardest sections are steep enough to force you out of rhythm if you have overcooked the early kilometres, but they never tip into the wall-like gradients of an HC monster. The challenge here is duration and consistency, not survival of a single brutal wall.

How the Gradient Unfolds

The defining number is that 7.35% average stretched across 10.8 km. Because the average sits so high and the maximum only reaches 10.9%, the gradient stays tightly clustered: you spend most of the climb somewhere between comfortably hard and genuinely difficult, rarely dropping to a true breather. Do the arithmetic and the shape becomes clear — 797 m of net elevation across 10.8 km with steepest ramps at 10.9% tells you the climb rarely eases below its own average for long. Expect the pattern to be a long steady body of climbing with the steepest 10.9% pitches punctuating rather than dominating. Treat every apparent flattening as temporary; the mountain always resumes its work.

Pacing Notes

Sustained climbs like this reward discipline over bravado. The single biggest mistake is starting above your sustainable threshold in the first couple of kilometres, then paying interest for the remaining eight. Anchor your effort to your FTP: on a 7.35% average that will take close to an hour, plan to ride the bulk of the climb just at or slightly below threshold, saving a small reserve for the 10.9% pitches where power naturally spikes. If you do not know your threshold number yet, run your recent data through the FTP estimator before you plan the effort. Meter your intensity so the steep ramps cost you cadence, not composure, and you will crest the 1407 m summit having climbed evenly rather than fading.

Gearing

For a 10.8 km climb averaging 7.35% with ramps to 10.9%, gear conservatively — you want to protect your cadence over the full 797 m of gain rather than muscle a big gear. A compact 34-tooth front paired with a 34×32 cassette is a sensible baseline for strong climbers, giving you enough range to spin the steepest 10.9% sections without grinding. If you are carrying fatigue, riding at altitude, or simply prefer to preserve your legs, step up to 34×34 for that extra margin. On a climb this sustained, the lower gear is rarely a luxury — being able to keep your legs turning at the summit is worth more than any pride saved by a harder ratio.

Summary

Alto de Torres is a textbook Category 1 test of sustained climbing: long, steep, and unforgiving of a poor pacing plan. Ride within yourself, gear low, and let the 10.8 km come to you.

Length: 10.8 km
Average gradient: 7.35%
Max gradient: 10.9%
Start: 610 m
Summit: 1407 m
Net gain: 797 m
Total ascent: 770 m
Category: 1