Hofmahdjoch

Overview

Hofmahdjoch is a hors catégorie climb, the highest classification a road ascent can carry, and its numbers explain why. From a start at 292 m it grinds upward for 23.5 km to a summit of 1784 m, a net gain of 1492 m at an average gradient of 6.35%. The total ascent of 1653 m tells you the road does not rise in a clean line: there are dips and false flats that force you to climb more than the raw elevation difference suggests. This is a long, sustained effort where the challenge is measured in patience as much as power.

How the Gradient Unfolds

An average of 6.35% across 23.5 km sounds steady, but averages hide the sharp edges. The maximum gradient of 18.89% is nearly three times the mean, so somewhere on this climb the road pitches into a wall that will spike your heart rate and drain your legs. Because total ascent (1653 m) exceeds net gain (1492 m) by 161 m, expect brief descents or flatter recovery stretches that break the rhythm and let the road reset before the next hard section. Plan for the surges rather than settling into a single gear and hoping the slope holds.

Pacing Notes

On a climb this long, discipline beats bravado. The single biggest mistake is going out hard on the lower slopes and paying for it near the 1784 m summit. Anchor your effort to your FTP and hold a sustainable percentage of it for the bulk of the 23.5 km, keeping enough in reserve to survive the 18.89% ramp without blowing up. If you do not know your threshold, run the numbers through the FTP estimator before you ride so your target wattage is grounded rather than guessed. Ride the average, respect the maximum, and treat the recovery dips as chances to eat, drink and drop your heart rate.

Gearing

For a 23.5 km HC climb averaging 6.35% with a maximum of 18.89%, gear for the steepest ramp, not the average. A compact 34-tooth chainring paired with a 34×32 cassette combination is the sensible baseline for strong riders who can turn a larger gear over. If you weigh more, ride tired, or simply want to protect your knees over 1492 m of climbing, step up to 34×34. That extra range keeps your cadence alive when the slope hits 18.89% and spares you the grind that ends climbs early. When in doubt on an HC ascent, choose the easier gear.

Summary

Hofmahdjoch rewards riders who pace with their heads and gear for the worst pitch. Respect the length, the 18.89% maximum, and the extra metres hidden in the 1653 m total ascent, and the summit at 1784 m is yours.

Length: 23.5 km
Average gradient: 6.35%
Max gradient: 18.89%
Start: 292 m
Summit: 1784 m
Net gain: 1492 m
Total ascent: 1653 m
Category: HC