Glaubenbielen Pass

Overview

Glaubenbielen Pass is a Hors Catégorie climb in Switzerland (CH), and it earns that rating without any padding. Over 11.5 km it climbs from a start elevation of 482 m to a summit of 1,629 m, for a net elevation gain of 1,147 m. With an average gradient of 9.97 percent, this is a sustained wall of a climb — there is no long false-flat approach to hide behind and no gentle valley run-in. From the first ramp, the road commits to a pitch that hovers around 10 percent for the better part of an hour.

The number that reshapes the effort is the gap between net gain and total ascent. The road climbs 1,147 m net but records 1,485 m of total ascent — 338 m of that is undulation, short descents and dips you have to re-climb. On a climb this steep, that mismatch matters: every metre you give back on a brief downhill has to be bought again on the next ramp, so your actual vertical workload is meaningfully higher than the net figure suggests.

How the Gradient Unfolds

An average of 9.97 percent is already brutal, but averages smooth over the spikes. Because 338 m of the total ascent comes from undulation, the profile is not a clean, even grade — it pulses between recovery and overload, which makes even-effort riding harder to hold.

• Short flatter or descending sections where the grade eases and you can breathe, drink, and reset cadence.
• Repeated short climbs that follow each dip — you re-climb the same metres you just lost, and these punches add up across the 11.5 km.
• The steepest ramp, where the grade pitches well into the mid-teens and forces you out of any comfortable rhythm.

Pacing Notes

On an undulating HC climb, even-speed pacing is a trap: holding a fixed speed means burning matches on every ramp and soft-pedalling on every dip. Ride to even effort instead. Anchor your climb to your sustainable power output and hold a steady target through the steep sections, allowing your speed to drop on the ramps rather than forcing it. On the flatter and descending stretches, keep pedalling to bank progress instead of coasting. If you do not know your ceiling, run the FTP estimator before you go so your target is grounded in real numbers, not guesswork.

Gearing

The steepest ramp governs your gearing, not the average. For a climb that pitches into the mid-teens off an already-near-10-percent base, bring a compact or sub-compact chainset paired with a wide-range cassette — think 34×32 or 34×34 at minimum. That range lets you spin the steepest sections at a survivable cadence rather than grinding your joints and torching your legs. Check your setup before the ride: confirm the cassette, derailleur capacity, and shifting under load, because there is no bailout gear to discover mid-climb.

Summary

• Length: 11.5 km
• Average gradient: 9.97%
• Maximum gradient: 21.18%
• Net elevation gain: 1,147 m
• Total ascent: 1,485 m
• Category: HC

Glaubenbielen Pass is a genuine HC test: steep from the base, undulating through the middle, and demanding on both your pacing discipline and your gearing. Respect the 338 m of hidden ascent, ride to effort, and gear low — do that, and the summit at 1,629 m is yours.