Kerenzerberg Pass

Kerenzerberg Pass cycling climb profile

The Kerenzerberg Pass is a climb that looks manageable on paper, but still asks for discipline if ridden hard. At 7 km with an average gradient of 3.94%, it is not a sustained high-gradient test. The key detail is the gap between that average and the maximum gradient of 7.47%. That tells you the climb is not simply a steady drag from bottom to summit. The road gives enough easier gradient to keep the average under 4%, but it also contains ramps that can briefly push the effort well above cruising intensity.

Starting at 443 m and topping out at 719 m, the pass gains 276 m net, with 295 m of total ascent. That small difference between net gain and total ascent points to a profile that is not perfectly linear. For pacing, that matters more than the headline average. A climb like this tempts riders into treating it as tempo from the start, but the sharper sections can turn that into repeated surges if the effort is not controlled.

How the gradient rides

The average gradient is low enough that momentum matters. On the easier sections, a strong rider can carry speed and keep pressure on the pedals without feeling boxed in by the slope. But the maximum gradient of 7.47% is high enough to expose overgearing, especially if the climb is ridden after fatigue has already accumulated.

The practical way to read this profile is as a rolling, moderate pass rather than a pure threshold wall. The 7 km length is long enough for poor pacing to compound, but short enough that a well-trained rider can ride it with a controlled, sustained effort. The Category 3 rating fits that middle ground: meaningful, but not the kind of climb where survival gearing should be the default.

Pacing and gearing notes

Start below the effort you think the average gradient allows. If you ride the opening kilometres as if the whole climb is locked at 3.94%, the steeper ramps can force you above FTP too often. That is the mistake this climb invites.

A better approach is to keep cadence stable on the moderate grades, then let power rise only slightly when the road kicks up. The maximum gradient of 7.47% does not demand extreme gearing, but it does reward having a low enough gear to stay seated and avoid grinding. If your cadence collapses on the steeper ramps, the climb becomes more muscular than aerobic, and the final portion will feel harder than the statistics suggest.

For a steady ascent, ride the easier gradients with restraint rather than using every shallow section to accelerate. For a race or hard group ride, the selective moments are likely the ramps, not the average slope. The rider who can absorb those changes without repeatedly spiking power will usually climb Kerenzerberg Pass faster than the rider chasing speed every time the gradient briefly eases.