Kolový priechod

Kolový priechod cycling climb profile

Kolový priechod is a long, measured effort rather than a short punch. The climb runs for 20.2 km, starts at 652 m, and tops out at 1548 m. That start-to-summit difference gives 896 m of net elevation gain, with the source also listing 880 m of total ascent. Either way, the practical message is the same: this is a category 2 climb where the main difficulty is duration.

The average gradient is 4.44 percent, which can make the climb look manageable on paper. The important detail is the maximum gradient of 9.77 percent. A climb this long with an average in the mid-4s and a peak just under 10 percent is unlikely to be one constant slope. The steeper sections have to be balanced by easier ground, so the ride should be paced as a variable-gradient endurance climb rather than as a single threshold ramp.

How the gradient rides

From the stats alone, the shape is clear in broad terms: Kolový priechod gains almost 900 m over 20.2 km without sustained double-digit gradients. That means the climb asks for patience. The average is low enough that strong riders will be tempted to ride above tempo early, especially if the opening slopes feel controlled. That is the main trap.

The max gradient of 9.77 percent matters because those ramps change the cost of the climb. Even brief pitches near that level can push cadence down, force torque up, and turn an otherwise aerobic effort into repeated muscular surges. If you respond to every steeper section by lifting power aggressively, the second half becomes much harder than the headline average suggests.

The smarter reading is to treat the easier sections as recovery while still climbing, not as permission to chase speed. Keep pressure on the pedals, but let speed rise naturally when the road relaxes. On the steepest ramps, accept a lower speed and protect your breathing. The climb rewards even energy use more than emotional pacing.

Pacing and gearing notes

For pacing, anchor the effort below your sustainable limit for the first part of the climb. On a 20.2 km ascent, the cost of going slightly too hard early is much larger than the time gained. If riding by power, this is a climb to manage around controlled endurance to tempo, only drifting higher when the gradient forces it. Riders using perceived effort should be able to speak in short phrases for much of the ascent, saving harder breathing for the steepest ramps.

Gearing should be chosen for the 9.77 percent maximum, not the 4.44 percent average. The average tells you the climb is not brutally steep overall; the maximum tells you whether you can keep cadence under control when the road bites. If your easiest gear is already uncomfortable on gradients close to 10 percent, you will spend too much of the climb grinding and accumulating fatigue.

A compact or sub-compact setup, paired with a cassette that gives a true climbing gear, is the safer choice for most riders. The goal is not just to survive the steepest pitch, but to ride it without spiking far above your intended effort. That matters because the climb is long enough for small overextensions to compound.

What it means for the ride

Kolový priechod is best approached as a disciplined aerobic climb with selective pressure. The numbers do not point to a wall, but they also do not describe an easy pass. A category 2 climb of 20.2 km with 896 m of net gain will expose pacing mistakes, especially if riders underestimate the steeper ramps hidden inside the 4.44 percent average.

Ride the first half like there is work still to come, gear for the hardest gradients, and let the climb come back to you. For riders calibrating effort, understanding your /glossary/ftp can help, but the bigger lesson here is simpler: on Kolový priechod, smooth pacing beats early enthusiasm.