Vorotan Pass

Overview

Vorotan Pass is a Category 1 climb that asks for patience before it asks for power. Over 15.8 km it lifts you from a start elevation of 1469 m to a 2339 m summit, a net gain of 870 m against a total ascent of 853 m. The average gradient of 5.5% sounds friendly, and for long stretches it is — but the climb hides a maximum pitch of 11.91%, more than double the average, that separates riders who paced well from those who spent too early. This is a high-altitude effort, finishing well above 2300 m, so the thinning air compounds every percentage point on the road.

How the Gradient Unfolds

The headline number to hold in your mind is the gap between 5.5% average and 11.91% maximum. That spread tells you the road is not uniform: expect the gradient to breathe, easing toward the lower single digits before ramping back up. Because the net gain (870 m) is actually larger than the total ascent (853 m), there is essentially no meaningful downhill on the way up — this is a relentless one-directional climb with no free recovery from descending. What recovery you get comes only from the flatter ramps between the steeper walls. Treat the double-digit sections as the defining moments; they are where the climb is won or lost.

Pacing Notes

At 15.8 km this is a sustained effort, so anchor your pacing to your FTP rather than to how you feel in the opening kilometres. A climb this long, gaining 870 m, punishes riders who chase the early gradient and arrive at the 11.91% pitches already over threshold. Aim to sit slightly below FTP on the steady 5.5% sections, banking the headroom you will need when the road rears up. If you do not know your current FTP, run the numbers first with the FTP estimator so you can set a wattage ceiling and hold to it. Above 2000 m your usable power will fade, so plan to ride the final third with a touch more restraint than the gradient alone suggests.

Gearing

Given the 15.8 km length, the 5.5% average, and that 11.91% maximum at altitude, gear for spinning rather than grinding. A compact 34-tooth chainring is the sensible front, paired with a wide-range cassette at the back. A 34×32 will get most fit riders over the steepest ramp, but if you weigh toward the endurance end of the scale, or simply want to protect your legs across the full 870 m of climbing, a 34×34 gives you a meaningful safety cog for the double-digit pitches. Err on the easier side here — a gear you never use costs nothing, while a missing one costs you the summit.

Summary

Vorotan Pass is a long, honest Category 1 climb: steady enough to settle into, steep enough in places to demand respect, and high enough to make the thin air a third opponent. Pace to your FTP, gear to spin, and save something for the 11.91% before the top.

Length — 15.8 km
Average gradient — 5.5%
Max gradient — 11.91%
Start — 1469 m
Summit — 2339 m
Net gain — 870 m
Total ascent — 853 m
Category — 1