Alto de Cachiyuyo

Alto de Cachiyuyo cycling climb profile

Alto de Cachiyuyo is not a climb that rewards optimism. At 12 km with an average gradient of 11.47%, it sits in the category where the headline number is already telling you most of what matters: this is a sustained, high-torque effort from bottom to summit. The climb starts at 1301 m and tops out at 2682 m, gaining 1381 m net across its length. That combination makes the pacing problem simple to understand and difficult to execute - go too hard early, and there is very little mathematical room for the road to give you back time later.

The HC category is justified by the density of the climbing. An average above 11% over 12 km means the climb is not defined by a single steep pitch surrounded by easier terrain. Even without a kilometer-by-kilometer breakdown, the overall profile points to a road that keeps pressure on the pedals for a long time. The listed maximum gradient of 34.31% adds another layer: somewhere on the ascent, the climb spikes into terrain where momentum disappears quickly and gear choice becomes as important as fitness.

How the gradient shapes the ride

The key feature here is compression. Over 12 km, Alto de Cachiyuyo gains elevation quickly enough that the rider is forced into climbing mode almost immediately. On a shallower climb, it is possible to ride slightly over threshold on steeper sections and recover on flatter ramps. Here, the average gradient is high enough that any recovery is likely to be limited, so the safest assumption is that the climb behaves more like one continuous resistance load than a rolling ascent.

That matters because steep climbs punish surges differently. On a moderate gradient, a short acceleration costs energy but can be absorbed if the road eases. On a climb averaging 11.47%, every acceleration has to be repaid while the bike is still moving uphill slowly. The maximum gradient of 34.31% should be treated as a warning not to arrive overgeared or already riding at the ceiling.

Pacing and gearing notes

The practical goal is to protect torque capacity. Start below the effort you think you can hold, then let the climb confirm whether you can lift the pace. If using /glossary/ftp as a guide, this is the kind of ascent where threshold discipline matters more than chasing speed early. The first objective is staying smooth, seated where possible, and avoiding repeated spikes that force you into grinding.

Gearing should be conservative. Bring the easiest climbing gear you can justify, because the 34.31% maximum gradient leaves no margin for pride. If cadence collapses on the steepest section, the cost is not just local muscle fatigue - it can destabilize the rest of the climb by pushing the effort above sustainable muscular tension.

Bottom line

Alto de Cachiyuyo is a pure climbing test: 12 km, HC classification, 11.47% average gradient, and a summit far above the start. Ride it like a long threshold-plus torque effort, not like a climb where you can gamble early and recover later. The profile argues for patience, low gearing, and a pacing plan that respects the numbers from the first meter.