Lappacher Jöchl - Forcella di Lappago

Overview

Lappacher Jöchl — Forcella di Lappago — is an HC climb, the hardest rating on the road, and its numbers explain why. Over 16.7 km you gain 1530 m net, starting at 860 m and topping out at 2390 m. The average gradient is a relentless 9.14%, and the road never really lets you settle: the steepest pitch bites at 21.57%. For context, a length past 16 km paired with a near-double-digit average is the profile of a genuine summit test, not a rolling warm-up. This is a climb you plan around, not one you improvise.

How the Gradient Unfolds

A 9.14% average across 16.7 km means there is very little respite built into the road. On an easier climb the mean is softened by flatter recovery sections; here, with the summit sitting 1530 m above the start, the elevation is stacked steeply and consistently. The gap between the 9.14% average and the 21.57% maximum tells you the story: expect long stretches hovering around the average, punctuated by ramps that jump more than twelve points above it. Those spikes are where efforts unravel. Total measured ascent comes to 1496 m — slightly under the net figure, which simply reflects how continuously the road tilts upward with few descending metres to give back.

Pacing Notes

On a climb this long and steep, discipline beats bravado. Anchor your effort to your FTP and treat the 9.14% average as your reference wattage, not your ceiling. The danger is the 21.57% ramps: if you attack them out of the saddle at threshold, you will pay for it across the remaining kilometres to 2390 m. Instead, let those pitches push you briefly over FTP, then ease back the moment the road relents. Budget your matches — 16.7 km of sustained climbing rewards a rider who starts conservatively and still has legs in the final third. If you are unsure where your threshold sits, run the numbers through the FTP estimator before you commit to a pacing plan.

Gearing

Gear for the ramps, not the average. A 9.14% mean over 16.7 km already demands a wide-range cassette, and the 21.57% maximum makes an easy bailout gear essential. A compact 34-tooth chainring paired with a 34×32 setup is the sensible baseline for the sustained sections, but on the steepest pitches — and this deep into 1530 m of climbing — a 34×34 gives you the extra cadence to keep spinning rather than grinding to a stall. If your frame and derailleur clear it, favour the larger sprocket; the legs you save on the 21.57% ramps are legs you will want near the 2390 m summit.

Summary

Lappacher Jöchl is an uncompromising HC ascent: long, steep, and short on mercy. Respect the 9.14% average, gear for the 21.57% spikes, and pace to your FTP, and the 2390 m summit is well within reach.

Length: 16.7 km
Average gradient: 9.14%
Max gradient: 21.57%
Start: 860 m
Summit: 2390 m
Net gain: 1530 m
Total ascent: 1496 m
Category: HC