Hörnli

Hörnli Cycling Climb Profile

The Hörnli cycling climb is an HC effort in CH, and the numbers explain why. It runs for 23.5 km from 593 m to 2486 m, gaining 1893 m net with 1918 m of total ascent. That small gap between net gain and total ascent matters: this is not a climb padded out by meaningful downhill recovery. It is, in practical terms, a long uphill drag that keeps asking for pressure on the pedals.

The headline average of 8.06% is already hard over this distance, but the more important detail is the maximum gradient of 23.41%. A climb can average 8.06% in different ways. Hörnli is not simply a steady tempo ramp. The presence of gradients above 23% means the ride will include sections where cadence, traction, and gearing become limiting factors, not just aerobic capacity.

How the Gradient Unfolds

Without segment-by-segment gradient data, the safest reading is mathematical rather than decorative. Over 23.5 km, an 8.06% average and 1893 m of net gain tell you the climb is consistently demanding. The 1918 m total ascent confirms that almost all of the vertical work is useful climbing rather than rolling terrain.

The 23.41% maximum gradient changes the pacing problem. Any rider who treats Hörnli as a metronomic 8% climb risks paying heavily when the road pitches up. Those steep ramps will force higher torque, especially if the bike is over-geared, and they can turn a sustainable threshold effort into repeated spikes above /glossary/ftp. That is where the climb does its damage: not just through length, but through the cost of responding to the steepest gradients after already accumulating substantial vertical gain.

Pacing and Gearing Notes

The correct pacing approach is conservative early and controlled through the middle. A 23.5 km HC climb with 1893 m of net gain gives very little room to recover from an early overreach. Start below the effort you think the average gradient deserves, because the maximum gradient shows there are harder moments waiting.

Gearing should be chosen for the steepest ramps, not the average. An 8.06% average might tempt a rider into a standard climbing setup, but 23.41% demands a low enough gear to keep cadence from collapsing. Once cadence falls too far on a ramp that steep, muscular fatigue rises quickly and the rest of the climb becomes more expensive.

For pacing, think in three rules:

• Ride the average gradient with patience, not aggression.
• Save a gear for the 23.41% sections, because they are the likely failure points.
• Protect cadence and breathing before chasing speed.

Hörnli is hard because the numbers compound. It is long, it gains nearly all of its elevation directly, and its steepest gradients are severe enough to punish poor gearing. Treat it as an endurance climb with decisive torque demands, not as a simple steady-state test.