Coll de la Portella

Overview

Coll de la Portella is a short, approachable climb that rewards rhythm over raw power. Over 3.2 km it lifts you from a start elevation of 492 m to a summit of 607 m — a net gain of 115 m, with a recorded total ascent of 102 m once the small dips along the way are accounted for. The average gradient sits at a gentle 3.56%, and even the steepest ramp tops out at 4.77%, so nothing here is designed to break you.

Rated category 4 — the mildest rung on the scale below the 3, 2, 1, and hors catégorie tiers — this is a climb you can ride at a genuine tempo. It is a fine warm-up, a repeatable interval, or a confidence-builder for riders newer to sustained climbing.

How the Gradient Unfolds

The defining feature of the Portella is its consistency. With an average of 3.56% and a maximum of only 4.77%, the difference between the easiest and hardest sections is barely more than a single percentage point. There are no walls, no lurching switchbacks to sap your momentum — just a steady, wide band of gradient that stays close to its average the whole way up.

Because the total ascent (102 m) reads slightly lower than the net gain (115 m), you can expect a couple of shallow false-flat or briefly downhill kicks where the road eases. Use those to recover, spin the legs, and carry speed into the next rise rather than sitting up.

Pacing Notes

On a climb this consistent, pacing is simple: settle in early and hold a smooth, even effort from base to summit. Because the gradient never exceeds 4.77%, most riders can climb the full 3.2 km at or near their FTP without blowing up.

If you want to turn this into a structured effort, target a wattage just under threshold and let the near-constant slope do the metering for you. Not sure where your threshold sits? Run the numbers through the FTP estimator first, then pick a target you can sustain for the roughly ten minutes this climb demands.

Gearing

You do not need mountain gearing for the Portella. With a maximum of 4.77% and an average of 3.56%, a standard compact setup with a 34×32 as your easiest ratio gives you plenty of room to spin comfortably the whole way up.

Riders who prefer to stay seated at a high cadence, or who are carrying fatigue from earlier climbing, will appreciate a 34×34 for a touch more spin on the steeper ramp. Either choice is comfortable overkill here — the real goal is a cadence you can hold smoothly across all 3.2 km rather than grinding.

Summary

Coll de la Portella is a gentle, consistent category 4 climb: 3.2 km of steady gradient, gaining 115 m from a 492 m base to a 607 m summit. With an average of 3.56% and a maximum of 4.77%, it is a perfect rhythm climb for tempo work, warm-ups, or building climbing confidence.

Length: 3.2 km
Average gradient: 3.56%
Max gradient: 4.77%
Start: 492 m
Summit: 607 m
Net gain: 115 m
Total ascent: 102 m
Category: 4