Fern Pass

Overview

Fern Pass is a Category 4 climb in Austria, running 8.1 km from a start elevation of 963 m to a summit at 1,232 m. On paper it is a modest effort: the net elevation gain is 269 m, and the average gradient reads a gentle 3.3%. Those numbers describe a climb that never threatens to be a pure test of sustained power, which makes it approachable for most riders regardless of climbing background.

The story changes once you look at the total ascent. While the net gain is only 269 m, the total ascent is 469 m — a 200 m gap. That mismatch means the road undulates: you climb, give some height back, and climb again. Every metre of descent inside the profile is a metre you have to re-earn, so the actual work is meaningfully higher than the net figure or the 3.3% average suggests. Treat this as an undulating road, not a steady grind.

How the Gradient Unfolds

The 3.3% average is an illusion created by that undulation. Averaged across 8.1 km, flatter and downhill sections drag the mean down and mask the real pitches. The steepest ramp hits 17.86% — more than five times the average — and that is where the climb is won or lost.

Expect the profile to break down roughly like this:

• Flatter and recovery sections, including short descents where you give back height
• Repeated short climbs stacked between the dips, which is where the extra 200 m of ascent lives
• A steepest ramp near 17.86% that demands a real surge in effort

Pacing Notes

On a steady climb you can hold even effort and let speed vary. Fern Pass rewards the same discipline but makes it harder to execute, because the undulation constantly tempts you to chase even speed — pushing hard over the risers and coasting the dips. Resist that. Anchor your climb to sustainable power output and let your speed fluctuate: ease slightly into the descents, then meter your effort back up on the risers rather than attacking them. Know your number before you arrive by running the FTP estimator, so the 17.86% ramp doesn't spike you into the red early.

Gearing

Gearing here is governed by the steepest pitch, not the average. A 17.86% ramp is steep enough that a standard setup will have you grinding. Run a compact or sub-compact chainset paired with a wide-range cassette — a 34×32 or 34×34 gives you a bailout gear for the steepest ramp while keeping cadence sane through the rollers. Check your setup before the ride; the average gradient will not save you on that ramp.

Summary

• Length: 8.1 km
• Average gradient: 3.3%
• Maximum gradient: 17.86%
• Net elevation gain: 269 m
• Total ascent: 469 m
• Category: 4

Fern Pass is a short climb that punches above its category. Ride it for the numbers on the steep ramp and the rollers, not the average, and it becomes a genuinely engaging effort rather than an easy transit.