Grubeck

Overview

Grubeck is a Category 2 climb in Austria, running 8.8 km from a valley start at 659 m to a summit at 1205 m. On paper it is a mid-length effort with 546 m of net elevation gain, the kind of climb you can hold a rhythm on if you read it correctly. The averages suggest a steady, honest grind.

The profile tells a more complicated story. Against 546 m of net gain, the road actually asks for 1021 m of total ascent — a gap of 475 m. That extra height comes from descents and false flats you have to climb back over, so the pitches that do go up are steeper than the 6.22% average implies. Plan for repeated hard efforts rather than one long, even drag.

How the Gradient Unfolds

An average gradient of 6.22% is misleading here because the undulation flattens the number. Give back 475 m in descents and re-climbs and the climbing sections have to be sharper to still net 546 m. The single steepest ramp hits 21.62%, a wall that will pull you out of the saddle regardless of how fresh you feel.

Expect the profile to break down roughly like this:

• Flatter and recovery sections where the road eases or tips downhill — use them, don't coast mentally
• Repeated short climbs that stack up to the 1021 m total ascent
• A steepest ramp of 21.62% that dictates your lowest gear

Pacing Notes

On a smooth climb, even-effort and even-speed pacing nearly converge. On Grubeck they don't. Chase an even speed and you'll spike your power on every re-climb and shed it on every dip — a fast way to blow up before the 1205 m summit. Pace to effort instead: hold a target on the steep pitches and let your speed rise freely on the flatter stretches.

Anchor that target to your sustainable power output so the 21.62% ramp doesn't push you into the red you can't recover from. If you don't have a current number, run the FTP estimator before you go and set a ceiling you can hold across all 8.8 km.

Gearing

The steepest gradient governs your setup, and 21.62% is steep enough to demand real range. Fit a compact or sub-compact chainset and pair it with a wide-range cassette — a 34×32 or 34×34 gives you something to turn on the wall without grinding to a stall. Check your chainring and cassette before the ride; discovering you're over-geared at 21.62% is not a mistake you can fix on the slope.

Summary

• Length: 8.8 km
• Average gradient: 6.22%
• Maximum gradient: 21.62%
• Net elevation gain: 546 m
• Total ascent: 1021 m
• Category: 2

Grubeck rewards riders who respect the gap between its net gain and its total ascent. Pace to effort, gear for the steepest ramp, and treat the flatter sections as part of the work — not a place to switch off.