Forcella Mangart / Mangartsko sedlo

Overview

Forcella Mangart / Mangartsko sedlo is a Category 1 climb that packs a genuine mountain effort into 11.3 kilometres. From a start at 779 metres it lifts you steadily to a summit of 1501 metres, a net gain of 722 metres and a total ascent of 685 metres once the brief respites are accounted for. The headline figure is an average gradient of 6.41%, but the road is far from uniform: with a maximum pitch of 13.39%, this is a climb that rewards riders who can hold a rhythm through changing slopes rather than simply grinding a single power number.

How the Gradient Unfolds

The gap between the 6.41% average and the 13.39% maximum tells the whole story of this ascent. That spread of just under seven points means the road swings well above and below its mean, so you will spend long stretches near the average interrupted by ramps that bite hard into double digits. Because the net gain of 722 metres slightly exceeds the total ascent of 685 metres, the profile is almost entirely upward — there are no meaningful descents to recover on, only shallower moments where the grade eases before steepening again. Treat the flatter sections as the climb's only gift and use them to reset your cadence before the next pitch toward 13.39%.

Pacing Notes

Over 11.3 kilometres, discipline beats bravado. Anchor your effort to a percentage of your FTP: aiming to sit just below threshold on the sustained 6.41% sections leaves a margin to absorb the surges toward 13.39% without going into the red. If you do not know your current threshold, run the numbers through the FTP estimator before you plan the day, then hold that ceiling honestly on the lower slopes so you still have legs when the gradient spikes. The 722-metre gain arrives gradually, so the riders who finish strongest are the ones who resist the temptation to attack the early ramps.

Gearing

With a max of 13.39% and an 11.3 km duration, choose gearing that keeps your cadence up when the road tilts. A compact 34-tooth inner ring paired with a 34×32 cassette is a sensible baseline for most riders tackling a Category 1 climb of this length. If you tend to fade over sustained gains like this 722-metre haul, or you simply prefer to spin, size up to a 34×34 — the extra sprocket costs nothing on the average 6.41% and buys real relief on the steepest pitches.

Summary

Forcella Mangart / Mangartsko sedlo is an honest Category 1 climb: long enough to demand pacing, steep enough to punish overreach, and consistent enough to reward a steady rhythm from base to summit. Bring low gearing, a threshold you trust, and patience for the full 11.3 kilometres.

Length: 11.3 km
Average gradient: 6.41%
Max gradient: 13.39%
Start: 779 m
Summit: 1501 m
Net gain: 722 m
Total ascent: 685 m
Category: 1