Puerto del Pando

Overview

Puerto del Pando is a compact but uncompromising climb: 3.8 km at an average gradient of 8.23%, gaining 316 m from a start at 1123 m to a summit at 1439 m. That average alone marks it as a serious effort, and the fact that the road never truly relents is what earns it a Category 2 rating despite its brevity. There is nowhere to hide here. From the moment the gradient kicks in, you are working against a slope that spends most of its length hovering close to its own average, with the steepest sections reaching 9.98%. Short climbs like this reward riders who can hold a high, steady output rather than those who prefer to recover on flatter stretches, because the flatter stretches simply do not exist.

How the Gradient Unfolds

With a length of 3.8 km and a net elevation gain of 316 m, the arithmetic is stark: the climb averages 8.23%, and the pitch rarely drops far below that figure. The gap between the 8.23% average and the 9.98% maximum is narrow, which tells you the road is consistent rather than punctuated by dramatic ramps and easy plateaus. Expect the gradient to settle into a grinding rhythm early and stay there. Because total ascent is measured at 294 m against a net gain of 316 m, there is effectively no descending or false-flat relief within the climb — every metre of road tilts upward. Treat the whole thing as one sustained wall, because that is exactly how it will feel under your legs.

Pacing Notes

On a climb this short and this steep, pacing is about restraint at the base rather than heroics. The temptation is to attack the opening ramps hard, but with 3.8 km of 8.23% ahead, going into the red in the first minute will cost you dearly before the summit at 1439 m. Aim to ride just at or slightly below your threshold. Knowing your FTP is the single most useful number for a climb like this: it lets you set a wattage ceiling and hold it. If you are unsure of your current figure, run the numbers through the FTP estimator before you plan your effort. A well-judged, even pace across all 3.8 km will beat a fast start and a fading crawl every time.

Gearing

The combination of a short distance and a high average gradient makes gearing critical — there is no easy section to spin out and recover, so you want a ratio that keeps your cadence comfortable across the entire 8.23% average and through the 9.98% pitches. For most riders, a compact chainset paired with a wide-range cassette is ideal. A 34×32 is the minimum I would recommend here, and if you are carrying fatigue, riding at altitude near 1439 m, or simply prefer to spin, a 34×34 gives you valuable extra insurance on the steepest ramps. Erring toward the easier gear costs you nothing and protects your legs on a climb where blowing up is easy.

Summary

Puerto del Pando packs a lot of punishment into a small package: 3.8 km of near-constant 8.23% gradient, topping out at 9.98%, with 316 m of net gain to a high-altitude finish. Ride it steady, gear it low, and respect the fact that it never eases.

Length: 3.8 km
Average gradient: 8.23%
Max gradient: 9.98%
Start: 1123 m
Summit: 1439 m
Net gain: 316 m
Total ascent: 294 m
Category: 2