Sasspass

Overview

Sasspass is a hors catégorie climb in Switzerland, and its numbers explain the rating without embellishment. Over 7.1 km it climbs from a start elevation of 815 m to a summit at 1883 m, a net elevation gain of 1068 m. The average gradient sits at 15.04%, which is exceptional for a paved climb of this length. This is not a tempo effort you settle into; it is a sustained overload from the first ramp.

The gap between the numbers matters. The net elevation gain is 1068 m, but the total ascent is 1241 m. That 173 m difference means the road undulates: you give back roughly 173 m of altitude across the climb and have to re-earn it. For your legs, the effort is harsher than the net figure suggests, because every metre lost to a dip or false flat is a metre you climb twice.

How the Gradient Unfolds

A 15.04% average is already severe, but averages flatten the story. On a climb with 173 m of undulation, that mean is pulled down by the recovery sections and pushed up by ramps that bite well past 20%. Plan for the extremes, not the mean.

• Short recovery or false-flat sections where the road briefly eases or dips — use them, don't coast through them.
• Repeated short climbs stacked back-to-back, each one re-climbing altitude you just lost.
• A steepest ramp that sits far above the 15% average — the pitch that will decide your ride.

Pacing Notes

On an undulating climb like this, even-speed pacing is a trap. Chasing a constant speed forces huge power spikes on the steep ramps and wasteful surges on the recoveries. Pace to even effort instead: hold a steady sustainable power output and let your speed rise and fall with the gradient.

Practically, cap your steep-ramp power just above threshold and soft-pedal the brief flatter sections to shed the debt. If you don't know your number, run the FTP estimator before you go, then ride to that ceiling from the bottom.

Gearing

Gearing here is governed by the steepest pitches, not the average. A standard chainset will leave you grinding sub-cadence and blowing up early. Fit a compact or sub-compact chainset paired with a wide-range cassette — think 34×32 or 34×34 as a minimum — so you keep a spinnable cadence when the ramp turns brutal. Check your setup before the ride: confirm the cassette clears the derailleur cage and that your lowest gear actually engages under load. Sorting this in the workshop is far cheaper than discovering it mid-climb.

Summary

• Length: 7.1 km
• Average gradient: 15.04%
• Net elevation gain: 1068 m
• Total ascent: 1241 m
• Category: HC

Sasspass is a short climb only on paper. A 15.04% average over 7.1 km, plus 173 m of re-climbed undulation, makes this an HC effort that rewards even-effort pacing and honest gearing. Prepare both and it becomes a hard day well ridden rather than a walk to the summit.