Alto del Mocho

Alto del Mocho cycling climb profile

Alto del Mocho is an HC climb that asks for patience before it asks for power. The headline numbers are severe enough on their own: 25.7 km at an average gradient of 8.28%, starting at 272 m and topping out at 2403 m. That gives 2131 m of net elevation gain, with 2137 m of total ascent.

That last pairing matters. When the net gain and total ascent are almost identical, the climb is not giving much back. This is not a climb where descents or long flat shelves reset the legs. The profile points to a sustained uphill effort where small changes in gradient matter because there is little free recovery built into the road.

How the gradient unfolds

The available profile data does not break Alto del Mocho into named sectors, so the safest reading is the big-picture one: this is a long, consistently demanding ascent with a very high ceiling. An 8.28% average across 25.7 km is already enough to push most riders into a controlled climbing rhythm. The 20.91% maximum gradient changes the tactical picture because it means at least one section is steep enough to punish over-gearing and any early pacing mistake.

The climb should be treated as a continuous load from bottom to summit rather than a sequence of ramps to attack. The start elevation of 272 m means the climb begins low, but the summit at 2403 m means the total vertical change is large. Even without claiming any altitude-specific effect beyond the listed elevations, that is a long time gaining height with very little interruption.

Pacing notes

The mistake on Alto del Mocho is making the average gradient feel manageable in the opening kilometres. At this length, riding above sustainable threshold early will create a debt that the final part of the climb is unlikely to forgive. Use /glossary/ftp as the anchor, but ride with enough margin for the maximum-gradient sections.

A practical approach:

• Start below your target climbing effort, not at it.
• Keep cadence protected whenever the road steepens.
• Avoid standing accelerations unless they are used to relieve muscle load, not to lift speed.
• Fuel early, because 25.7 km at this gradient is too long to treat as a short maximal effort.

Gearing notes

Bring lower gearing than the average gradient suggests. The 20.91% maximum is the key number for equipment choice, not just the 8.28% average. If your easiest gear only works when seated on moderate gradients, it is not generous enough for this climb.

The ideal setup lets you stay seated through sustained steep terrain while still having one gear left for the hardest pitch. Alto del Mocho rewards riders who keep the effort smooth, protect cadence, and accept that the climb is won by resisting the urge to solve it too early.