Augstbordpass

Augstbordpass cycling climb profile

Augstbordpass is a pure endurance test: 21.1 km of climbing in Switzerland, starting at 641 m and topping out at 2726 m. The headline number is the average gradient of 9.9 percent, because that tells you the basic tactical truth of the climb before anything else does. This is not a long alpine drag where the gradient lets you settle into an easy rhythm. At this length, with 2085 m of net elevation gain, the climb asks for sustained torque from the bottom and gives very little margin for early overconfidence.

Its HC category is justified by the combination rather than by any single statistic in isolation. A 21.1 km climb is already a long effort. Pair that with an average just under double digits and the physiological cost changes. You are not simply managing aerobic output. You are managing muscular fatigue, cadence drift, and the temptation to punch over steeper ramps too hard.

How the gradient unfolds

The available profile data does not give individual kilometre splits, so the safest way to read Augstbordpass is as a climb where the overall average matters more than any imagined sequence of sections. A 9.9 percent average over 21.1 km means the road has to stay consistently demanding. Even if there are brief moments where the gradient eases, they are unlikely to be meaningful recovery in the way they might be on a climb with a much lower average.

The maximum gradient of 24.01 percent is the number that should shape your gearing and pacing plan. Whether that pitch arrives early, late, or in the middle, it creates a real risk: if you arrive there already riding above your sustainable climbing effort, the ramp can force you into a cadence collapse. On a climb this long, one over-geared steep section can cost more than the time lost on that ramp alone, because it loads the legs for everything that follows.

Pacing and gearing notes

The right approach is conservative at the base and disciplined through the middle. Ride the opening as if the climb will not get easier, because the 9.9 percent average says that is the correct assumption. Use /glossary/ftp as a ceiling rather than a target: repeated moves above sustainable power will compound quickly on a 2085 m gain climb.

Gearing should be chosen for the steepest number, not the average. The 24.01 percent maximum means a standard climbing setup that feels fine on moderate alpine gradients may still leave you grinding. Prioritise a low enough gear to stay seated when the slope bites, keep pressure smooth, and avoid turning the climb into repeated low-cadence strength efforts.

The practical rhythm is simple: start controlled, protect cadence, and treat every harder ramp as something to absorb rather than attack. Augstbordpass rewards riders who respect the arithmetic. Over 21.1 km at 9.9 percent, small pacing mistakes do not stay small for long.