Puerto del Toro

Overview

Puerto del Toro is a category 1 climb that rewards patience over aggression. It runs for 14.8 km at an average gradient of 5.28%, lifting you from a start elevation of 420 m to a summit at 1204 m. On paper that is a net elevation gain of 784 m, though the road gives back a little along the way — total ascent lands at 768 m, a sign that the profile is not a single unbroken ramp. What makes this climb bite is the spread between the average and the maximum: 5.28% sounds civil, but a peak pitch of 17.1% is anything but. This is a long effort with a nasty edge tucked inside it.

How the Gradient Unfolds

The gap between the 5.28% average and the 17.1% maximum tells the story. Averages this moderate over 14.8 km almost never mean a metronomic grade; instead, gentler stretches balance out the steep ones. Expect sections that sit comfortably below the mean, letting you find rhythm, punctuated by ramps that spike well into double digits and top out at 17.1%. The difference between the 784 m net gain and the 768 m of total ascent confirms there are brief flatter or descending kinks breaking up the climb. Treat those easier passages as recovery, not as an invitation to bury yourself — the steepest pitch can arrive when your legs are already loaded from the kilometres behind you.

Pacing Notes

Over 14.8 km, discipline beats bravado. Anchor your effort to your FTP and hold something in reserve for the 17.1% wall rather than redlining on the moderate opening slopes. If you are unsure of your threshold, run the numbers through the FTP estimator before you commit to a target. A steady, sustainable power that sits just under threshold on the average grade — with the freedom to surge over threshold briefly on the steep ramps — will carry you to 1204 m intact. The classic error here is spending too much on the easier early gradients, then blowing apart when the road kicks to 17.1%. Ride the first two-thirds within yourself; the climb will tell you when it is time to dig.

Gearing

With a 17.1% maximum on a climb that stretches 14.8 km, gearing choice is not a detail — it is the difference between spinning and grinding to a halt. A compact 34-tooth chainring paired with a wide-range cassette is the sensible baseline. A 34×32 will handle most of the climb and keeps your cadence honest through the sustained 5.28% sections. But when the road hits 17.1% deep into the effort, many riders will want more relief: a 34×34 lowers your smallest gear further and protects your knees over the full 784 m of climbing. If your legs or bike allow only one setup, err toward the easier 34×34 — you will never regret having a bailout gear on a wall that steep.

Summary

Puerto del Toro is a genuine category 1 test: long enough to grind you down at 5.28%, and steep enough at 17.1% to break a poorly paced ride. Respect the numbers, gear low, and save something for the ramps.

Length: 14.8 km
Average gradient: 5.28%
Max gradient: 17.1%
Start: 420 m
Summit: 1204 m
Net gain: 784 m
Total ascent: 768 m
Category: 1