Puerto de Cantavieja

Overview

Puerto de Cantavieja is a category-2 climb that stretches 7.7 km and asks a steady, sustained effort of anyone who takes it on. From a start elevation of 740 m it climbs to a summit at 1245 m, a net gain of 505 m. The average gradient sits at 6.57%, which puts it firmly in the "no free metres" bracket: not so steep that it becomes a pure grind from the gun, but consistent enough that there is nowhere to genuinely switch off. Add a max gradient of 15.08% lurking in the mix, and you have a climb that rewards discipline over enthusiasm.

How the Gradient Unfolds

The headline number to remember is 6.57%, but averages hide the story. Across 7.7 km you gain 505 m of net elevation, with a total ascent of 481 m once the small undulations are accounted for. The gap between those two figures tells you the climb is not a perfectly smooth ramp — there are shallower stretches where the road eases and steeper kicks that claw it back. The 15.08% max gradient is more than double the average, so expect at least one pitch where you are out of the saddle and the front wheel feels light. Treat the average as your baseline and the max as your warning: pace to the mean, survive the spikes.

Pacing Notes

The smartest way to ride a 7.7 km climb at 6.57% is to anchor your effort to your FTP rather than to how you feel in the first kilometre. On a category-2 ascent like this, most riders can hold something close to threshold, but the 15.08% ramp will briefly spike your power well above it — so bank a little headroom early and let the steep sections take their tax without blowing you apart. If you are unsure what number to target, run your figures through the FTP estimator and set a ceiling before you start. Ride the shallow sections just under threshold, absorb the pitches, and you will crest with something left.

Gearing

For a climb averaging 6.57% and touching 15.08%, gearing is where you save yourself. A compact 34-tooth inner ring paired with a wide cassette is the sensible baseline. A 34×32 will get most reasonably fit riders up the sustained gradient without cross-chaining into misery, but the 15.08% pinch is exactly the kind of moment where a 34×34 earns its place — that extra sprocket keeps your cadence alive when the road stands up. If you have the range, fit the 34×34 and be grateful on the steep bits; if you are strong and light, 34×32 is enough.

Summary

Puerto de Cantavieja is a classic category-2 test: long enough at 7.7 km to demand pacing, steep enough at 6.57% average to punish the impatient, and spiky enough at 15.08% max to keep you honest. Gear conservatively, pace to your threshold, and enjoy the 505 m of climbing up to 1245 m.

Length: 7.7 km
Average gradient: 6.57%
Max gradient: 15.08%
Start: 740 m
Summit: 1245 m
Net gain: 505 m
Total ascent: 481 m
Category: 2