Iriški Venac

Overview

Iriški Venac is a 9.1 km category 3 ascent that trades brute steepness for steady, honest work. From a base at 109 m it rises to a summit of 520 m, a net gain of 411 m, with the recorded total ascent sitting at 398 m. The headline number is an average gradient of 4.53% — moderate on paper — but that figure hides a spike to 14.41%, the kind of ramp that can shred a rhythm you thought was locked in. This is a climb you settle into rather than sprint, and it rewards riders who read the road ahead instead of reacting to it.

How the Gradient Unfolds

Nearly nine and a half kilometres at a shade under five percent means the climb never truly relents, but it also never overwhelms across most of its length. The gap between the 4.53% average and the 14.41% maximum tells the real story: this is not a uniform grind. Long stretches sit comfortably below the average, banking a little recovery, before the gradient rears up toward that double-digit pitch. Spreading 411 m of net gain across 9.1 km keeps the overall load manageable, yet the steepest section — nearly three times the average — is where the climb decides who paced it well and who overcooked the early kilometres.

Pacing Notes

The trap on a climb like this is the friendly average. At 4.53% it is tempting to push into the red early, but the 14.41% ramp demands you arrive with something in reserve. Anchor your effort to your FTP and aim to hold a controlled, sustainable power on the shallower sections, then accept a slower cadence and higher torque through the steep pitch rather than blowing your effort trying to hold speed. If you are not sure what number to target, run the numbers through the FTP estimator before you start. Over 9.1 km, a rider pacing 5–10 watts too high in the first third will pay it all back — with interest — on the steepest metres.

Gearing

For a climb averaging 4.53% you can get away with a fairly conventional setup, but the 14.41% maximum is the deciding factor. A compact chainring paired with a wide-range cassette is the sensible choice here. A 34×32 will carry most riders through the bulk of the climb in reasonable comfort, but if you favour spinning or you are riding tired, a 34×34 gives you the extra margin to keep your cadence up on that steep ramp instead of grinding to a near-stall. Given a summit at 520 m and a net gain of 411 m, err toward the easier ratio — you rarely regret a spare gear you did not need.

Summary

Iriški Venac is a fair, well-shaped category 3 climb: long enough at 9.1 km to matter, moderate enough at 4.53% to reward patience, and spiky enough at 14.41% to punish anyone who ignores it. Pace to your FTP, gear for the steep pitch, and let the 411 m of gain come to you.

Length: 9.1 km
Average gradient: 4.53%
Max gradient: 14.41%
Start: 109 m
Summit: 520 m
Net gain: 411 m
Total ascent: 398 m
Category: 3