Gardena Pass

Overview

Gardena Pass is a long, high-altitude Category 1 climb that stretches for 25.8 km from a start elevation of 893 m up to a summit at 2123 m. Over that distance it delivers a net elevation gain of 1230 m, with a total ascent of 1209 m once the small dips along the way are folded in. The average gradient of 4.77% might read as gentle on paper, but averages hide the truth on a climb this long: the effort is measured in duration as much as steepness. At more than 25 km, this is a sustained endurance test where the summit sits well above 2000 m and thin air becomes a factor of its own.

How the Gradient Unfolds

The headline number is a 4.77% average, but with a maximum gradient of 13.17% the road is far from uniform. The gap between a 4.77% mean and a 13.17% peak tells you the climb is built from mixed pitches: long shallow drags interrupted by sharper ramps that briefly triple the average. Because the total ascent (1209 m) is slightly less than the net gain (1230 m), you can expect the odd flatter section or short false-flat where you recover before the next kicker. Plan your effort around the ramps, not the average — the steep pitches are where riders who paced by feel alone tend to unravel.

Pacing Notes

On a 25.8 km climb, discipline beats ambition. Anchor your effort to your FTP and hold a steady, repeatable power rather than chasing the early gradient. If you're unsure of your number, run it through the FTP estimator before you commit to a pacing plan. Aim to sit comfortably below threshold on the shallower stretches so you have headroom when the road tilts toward its 13.17% max. Remember that the summit sits at 2123 m — at altitude your sustainable power drops, so the figure that felt easy at the 893 m base will feel harder near the top. Bank nothing early; the last kilometres of a 1230 m gain are where the climb is won or lost.

Gearing

With ramps hitting 13.17% and more than an hour of climbing likely for most riders, gear for the steep pitches, not the average. A compact 34-tooth chainring paired with a wide-range cassette is the sensible baseline. A 34×32 will get most fit riders over the sharpest ramps while keeping cadence honest, but if you know you fade on long climbs or you're carrying gear, a 34×34 buys you extra insurance for the steepest sections near the 2123 m summit. Err toward the easier ratio — spinning a spare gear costs nothing, while grinding an over-geared bike for 25.8 km costs the whole day.

Summary

Gardena Pass rewards patience: a long, high climb where steady pacing and generous gearing matter more than raw punch. Respect the distance, save something for the altitude, and let the average do the work.

Length: 25.8 km
Average gradient: 4.77%
Max gradient: 13.17%
Start: 893 m
Summit: 2123 m
Net gain: 1230 m
Total ascent: 1209 m
Category: 1