Sommertor

Overview

Sommertor is a Category 1 climb in Austria that runs 34.6 km from a valley floor at 748 m to a summit of 1,937 m. On paper it delivers 1,189 m of net elevation gain, and that number alone would suggest a long, steady drag at a manageable pitch. The scale is real: this is a mountain-length effort measured in hours, not minutes, and the 3.44% average gradient reads like a road you could sit and spin all day.

That average lies. The total ascent over the 34.6 km is 2,639 m — 1,450 m more than the net gain. That gap is undulation: every time the road tips down or flattens between climbs, you have to earn the height back further up. You end up climbing more than twice the net figure, so the effort belongs to a much harder climb than the average gradient implies. Plan for repeated surges, not one long grind.

How the Gradient Unfolds

A 3.44% average across 34.6 km is an accounting trick. With 2,639 m of total ascent, the road is constantly rising, dropping, and rising again — the flat and downhill sections drag the average down and hide where the real work sits. The steepest ramp hits 32.9%, a wall that has nothing to do with the average and everything to do with whether you clear it seated or blow up.

Across the profile, expect:

• Flatter and downhill recovery sections that pull the average down but force you to re-climb lost height
• Repeated short, punchy climbs stacked one after another rather than a single sustained grade
• A steepest ramp of 32.9% that demands your easiest gear and full attention

Pacing Notes

On an undulating climb like Sommertor, even-speed pacing wrecks you — holding a fixed speed means spiking your power on every riser and coasting the descents. Pace to even effort instead: ride the rollers at a controlled, repeatable output and let your speed rise and fall with the terrain. Anchor that effort to your sustainable power output so the short climbs don't push you into the red 10 km in. If you don't know your number, run the FTP estimator before you start and set a ceiling you can hold for the full 34.6 km.

Gearing

The 32.9% ramp governs your setup, not the average. A compact or sub-compact chainset paired with a wide-range cassette — think 34×32 or 34×34 — gives you a gear low enough to keep turning on the wall without lurching to a stop. If your smallest gear is anything tighter, you'll be grinding at unsustainable torque exactly where the undulation has already drained your legs. Check your chainrings and cassette before the ride, not at the base of the ramp.

Summary

• Length: 34.6 km
• Average gradient: 3.44%
• Maximum gradient: 32.9%
• Net elevation gain: 1,189 m
• Total ascent: 2,639 m
• Category: 1

Sommertor is a Category 1 climb that punishes anyone who trusts the 3.44% average. With 2,639 m of total ascent against 1,189 m of net gain, the extra 1,450 m of undulation is the real story — pace to effort, gear for the 32.9% ramp, and treat this as the sustained mountain day it is.