Pass Strub

Overview

Pass Strub is a short, punchy Category 4 climb in Austria that deceives riders with a modest average gradient. At 2.3 km long with a 4.99% average, it sounds manageable — but a maximum gradient of 19.52% tells the real story. The total ascent of 209 m across those 2.3 km, against a net elevation gain of just 115 m, signals meaningful gradient variation: the road rises sharply, eases, then bites again.

How the Gradient Unfolds

The discrepancy between net elevation gain (115 m) and total ascent (209 m) is the key detail here. That gap — roughly 94 m of "extra" climbing — means the road does not simply ramp up and hold. Expect at least one section of descent or significant gradient rollback embedded within the climb itself, likely luring riders into pushing too hard on an early ramp before the road kicks back up.

The 19.52% maximum gradient is the number that demands respect. A ramp of that steepness is not a brief wall — it requires deliberate gear selection well in advance. Riders who spin easily through the flatter sections and then encounter this pitch unprepared will find themselves out of gears or forced to surge well above sustainable power.

What to Watch For

• Early false flat or shallow ramp: Likely to tempt an aggressive early pace
• Hidden descent or gradient relief mid-climb: The net vs. total ascent gap suggests the road gives back some elevation before the final push
• The maximum gradient ramp: At 19.52%, this will demand your lowest available gear; do not wait until you're on it to shift

Pacing Notes

For a 2.3 km climb, most riders will be on Pass Strub for somewhere between five and twelve minutes depending on fitness. That's long enough that going full gas from the bottom risks a blow-up on the steepest pitch, but short enough that you should be riding well above your FTP for the duration.

The practical approach:

1. Start controlled. The average gradient of 4.99% is not the climb's character — the maximum of 19.52% is. Reserve capacity.
2. Identify the gradient relief section. If the road genuinely descends mid-climb, use it to recover breathing and reset cadence rather than accelerating.
3. Pre-shift before the steep ramp. On a 19.52% pitch, you want your easiest gear engaged before the gradient arrives. Trying to shift under high torque risks a dropped chain or a missed shift at the worst moment.
4. Target a steady power output rather than chasing a steady speed — speed will drop sharply on the steep sections regardless of effort.

Not sure where your sustainable power ceiling sits? Use the FTP Estimator to calibrate your effort before heading out.

Gearing Considerations

Given the 19.52% maximum, compact gearing (50/34 or 46/33) paired with an 11-32 or wider cassette is strongly advisable. Riders on standard doubles should be realistic: a 52/36 front ring with only an 11-28 cassette will produce very high pedaling torque on that maximum pitch, particularly if fatigue is already accumulating.

Summary

Pass Strub is not a long climb, but it is not a forgettable one either. The combination of significant gradient variation, a near-20% maximum ramp, and a start elevation that suggests a valley-to-ridge transition makes it a climb that rewards riders who read the road and pace intelligently over those who simply hammer from the bottom.