Hiaslegg

Overview

The Hiaslegg is a Category 2 climb in Austria. At 10.8 km long with a net elevation gain of 501 m and an average gradient of 4.64%, it reads on paper as a manageable, rolling ascent. Ride it without respect and the 21.45% maximum gradient will correct that assumption quickly.

The gap between net elevation gain (501 m) and total ascent (978 m) tells the real story: this climb undulates significantly. You are not grinding a steady ramp — you are absorbing repeated surges and recoveries across terrain that rises and dips on the way to the summit.

How the Gradient Unfolds

With nearly twice as much total ascent as net gain, expect the Hiaslegg to offer genuine descending or flat relief sections interspersed with sharp upward kicks. The 21.45% maximum gradient is severe by any standard — steeper than most riders encounter on Category 1 climbs — and it almost certainly appears as a short, punchy wall rather than a sustained ramp. Riders who treat the easier sections as a full recovery zone will arrive at that wall underprepared.

Key characteristics to expect:

• Rolling profile with multiple gradient changes across the 10.8 km
• Punchy maximum wall at 21.45% — short but genuinely steep
• Easier stretches that invite over-pacing if you are not disciplined
• Net gain of 501 m from start elevation to summit, beginning at 660 m

Pacing Strategy

Because the average gradient of 4.64% understates what this climb actually demands, pacing by FTP percentage alone can mislead you. The undulating profile rewards a power-smoothing approach: push moderately on the easier pitches, control effort at the steep sections rather than attacking them, and protect enough energy to handle the maximum gradient without blowing up.

A conservative target on the flatter or descending segments is 75–85% of FTP, reserving the capacity to absorb the sharp walls at sustainable — not maximal — effort. If you do not know your FTP, the FTP Estimator can give you a working baseline before you head out.

Gearing Notes

The 21.45% maximum gradient demands low gearing. Riders on a standard 50/34 compact chainset should have at least an 11-32 cassette, and a 34t chainring paired with a 34t sprocket will still feel hard at maximum gradient if fatigue has already accumulated. A wide-range 11-34 or 11-36 cassette removes the guesswork. Do not be caught in too large a gear when the steep wall arrives — momentum from any preceding downhill section will disappear in a few pedal strokes.

What to Expect on the Day

The Hiaslegg's Category 2 rating reflects cumulative difficulty rather than a single unrelenting grind. Riders who have trained on consistently steep climbs may find the average gradient non-threatening, but the irregular terrain and that near-22% maximum pitch create a specific challenge: managing repeated changes in effort level without drifting into anaerobic debt too early.

Ride the descent sections at recovery pace, not as a reward. Save the sprint for after the summit.