Puerto de Tavizna

Overview

Puerto de Tavizna is a Category 1 climb that packs a serious punch into a compact 7 km. From a start elevation of 227 m to a summit of 822 m, it delivers a net gain of 595 m with 568 m of total ascent — meaning the road climbs almost without pause. The 8.5% average gradient tells you this is no gentle drag: it is a sustained, steep effort that rewards riders who respect the numbers early. On the five-tier scale where HC is hardest, followed by 1, 2, 3, and 4, a Category 1 rating places Tavizna firmly among the demanding climbs, a step below the giants but well beyond anything casual.

How the Gradient Unfolds

The defining feature of Tavizna is consistency punctuated by cruelty. With an 8.5% average holding across the full 7 km, there are few genuine recovery stretches — the road simply keeps tilting upward. The headline threat is the 18.52% maximum gradient, a wall that is more than double the average and roughly ten points steeper than the mean. Ramps like that arrive fast and demand a hard downshift; a moment of hesitation and your cadence collapses. Because the average sits at 8.5% while the max hits 18.52%, expect long passages hovering near or just above average, then abrupt spikes that spike your heart rate. The gap between 595 m of net gain and 568 m of total ascent is small, confirming there is almost no false-flat or descent to exploit — every metre earned stays earned.

Pacing Notes

On a climb this steep and short, pacing discipline is everything. The 7 km distance is short enough that riders are tempted to attack, but the 8.5% average will punish anyone who redlines in the opening kilometres. Anchor your effort to your FTP and aim to hold a controlled percentage of it through the steady sections, keeping a reserve for the 18.52% ramp so you do not stall. If you are unsure of your threshold, run the numbers through the FTP estimator before you plan your target power. Break the 7 km into thirds: settle in the first, hold steady through the middle, and only open up once you know the summit at 822 m is within reach. Getting the first 595 m of gain wrong is far costlier here than on a longer, shallower climb.

Gearing

Steepness this relentless makes gearing your first line of defence. With 8.5% averaged over 7 km and pitches to 18.52%, a compact chainring paired with a wide-range cassette is strongly recommended. A 34×32 will get most fit riders up the steady sections, but the 18.52% wall is exactly where a 34×32 can leave you grinding an unsustainable cadence. If your legs or your loaded bike run heavier, opt for a 34×34 to keep the pedals turning through the worst ramps. The extra range costs nothing on the average slope and buys you survival on the spikes.

Summary

Puerto de Tavizna is a short, steep, honest Category 1 test: 7 km that never lets up, an 8.5% average, and an 18.52% wall to survive. Pace it with your FTP in mind, gear low, and let the 595 m of climbing come to you.

Length: 7 km
Average gradient: 8.5%
Max gradient: 18.52%
Start: 227 m
Summit: 822 m
Net gain: 595 m
Total ascent: 568 m
Category: 1