Jablonovské sedlo

Overview

Jablonovské sedlo is a category 3 climb that rewards patience over explosiveness. At 11.4 km it is a long haul, but the numbers tell you why it stays in the third tier rather than climbing the ladder toward hors catégorie: the average gradient sits at a modest 3.02%, and the summit tops out at 538 m after starting from just 193 m. That is a net elevation gain of 345 m spread across more than eleven kilometres — the profile of a road that leans on you gently for most of its length rather than one that tries to break you.

The total ascent of 330 m is slightly less than the net gain of 345 m, which tells you the road is almost entirely uphill with no meaningful descents to give back what you have climbed. You settle in, find a rhythm, and keep the pedals turning.

How the Gradient Unfolds

The story of this climb is the gap between its average and its maximum. A 3.02% average is a false-flat-plus effort — the kind of grade you can hold in a big gear if the wind and legs allow. But the max gradient of 8.28% is nearly three times steeper than the average, so the climb is not uniform. Somewhere along its 11.4 km there is at least one ramp that stands up sharply, and the rest of the road must sit well below the average to keep the mean at 3.02%.

Expect long, shallow drags where you can carry speed, punctuated by a steeper pinch that briefly bites toward that 8.28% figure. Reading the road ahead matters more here than raw power.

Pacing Notes

On a climb this long and this shallow, pacing is about consistency, not heroics. Aim to sit just below your threshold on the gentle sections so you have headroom when the grade kicks toward 8.28%. Your FTP is the number to anchor to — hold a percentage of it that you can sustain for the full 11.4 km rather than blowing up on the first ramp.

If you are not sure what wattage that means for you, run your figures through the FTP estimator before you ride. Knowing your sustainable power turns a guessing game into a plan: cruise the false flats efficiently, then meter your effort over the steep pinch without going into the red.

Gearing

Because the average is so gentle, you will spend much of Jablonovské sedlo in a comfortable gear — this is not a climb that demands your absolute lowest ratio for long. That said, the 8.28% max means you want a bailout for when the road tilts up. A compact chainset paired with a wide-range cassette is ideal.

A 34×32 will handle the steep pinch for most riders with reasonable legs, letting you spin over the ramp rather than grinding. If you prefer to keep cadence high, carry fatigue, or ride at the end of a long day, a 34×34 gives you an extra margin of comfort on that steepest section. Either setup leaves plenty of range for the shallow majority of the climb.

Summary

Jablonovské sedlo is a long, forgiving category 3 climb defined by a gentle 3.02% average and a single steeper bite at 8.28%. Pace it steadily, gear it for that one ramp, and the 345 m of climbing passes more easily than the distance suggests.

Length: 11.4 km
Average gradient: 3.02%
Max gradient: 8.28%
Start: 193 m
Summit: 538 m
Net gain: 345 m
Total ascent: 330 m
Category: 3