Alto de Ancón

Alto de Ancón cycling climb profile

Alto de Ancón is a short, category 4 climb in CO, measuring 1 km from bottom to summit. The listed start elevation is 1386 m and the summit elevation is 1450 m, giving 64 m of net elevation gain across the effort.

That makes this a climb where the main difficulty is not duration, but execution. At 6.34% average gradient, it sits in the awkward zone where strong riders can convince themselves it is short enough to muscle over, only to find that the second half still requires discipline. A 1 km climb does not give much time to recover from a bad opening.

How the gradient unfolds

The available profile data gives the climb as 1 km at 6.34%. That points to a compact, uphill effort rather than a rolling approach or a long endurance climb. The listed maximum gradient is 3.88%, which conflicts with the stated average gradient of 6.34%, so the practical takeaway is to treat the whole-climb average and elevation gain as the more useful pacing guide rather than assuming a clear steepest ramp from the max-gradient field.

In riding terms, expect the climb to feel steady and compressed. There is not enough distance for a slow-burn tempo approach to fully settle in, but it is also not so short that a pure seated sprint makes sense for most riders. The correct effort is closer to a controlled hard surge: firm from the base, but not maximal until the summit is clearly within reach.

Pacing and gearing notes

For pacing, the mistake is attacking the opening as if 1 km means the climb is free. The 64 m net gain still has to be paid for, and at this gradient the cost arrives quickly if cadence drops or power spikes early. Start just below the effort you think you can hold to the top, then lift once the climb is mostly completed.

A compact climbing gear is useful, not because the climb is long, but because smooth cadence matters on short gradients. If you are grinding from the first meters, you have already narrowed your tactical options. Stay seated where possible, keep the upper body quiet, and use any standing effort as a short reset rather than a prolonged acceleration.

For riders pacing by /glossary/ftp, this is not a climb to ride like a long threshold test unless fatigue or race context demands restraint. It is better treated as a short, controlled over-threshold effort with a final push, especially if the goal is to crest with speed rather than simply survive the gradient.