Collado de la Cruz cycling climb profile
Collado de la Cruz is a compact category 4 climb in Spain, measuring 2.5 km at an average gradient of 4.2%. It starts at 404 m and tops out at 507 m, which tells you the essential character of the ascent: this is not a long mountain effort, but a short rise where the main risk is treating the opening too casually and then finding yourself over-geared when the road reaches its steeper pitches.
The maximum gradient is 6.61%, so the climb does not appear to have the kind of violent ramps that force a full reset of rhythm. The gap between the average gradient and the maximum gradient is relatively small, which points toward a climb that rewards steady pressure more than repeated accelerations. If you ride it well, it should feel like a controlled tempo ascent rather than a survival effort.
The supplied profile lists 103 m of net elevation gain and 83 m of total ascent. However that is interpreted in the source data, the practical conclusion is the same: the vertical load is modest, and the climb is defined more by pacing discipline than by altitude or accumulated climbing fatigue.
How the gradient rides
At 4.2% average over 2.5 km, Collado de la Cruz sits in the zone where speed can stay relatively high, especially for riders who can keep pressure on the pedals over shallow gradients. That makes it tempting to ride too hard early, because the road is unlikely to feel intimidating from the bottom.
The problem is that a maximum of 6.61% is enough to expose poor pacing. If you start above your sustainable effort, even a short steeper section can force you into a gear change under load or push you out of a smooth cadence. On a climb this short, that kind of disruption costs more than it seems, because there is not much distance left to rebuild rhythm.
Pacing and gearing notes
Treat Collado de la Cruz as a measured aerobic effort with room to lift near the top. The best approach is to settle quickly, keep the first part under control, and avoid chasing speed on the easier gradients. If you are using power, anchor the ride to a sustainable effort relative to your /glossary/ftp rather than responding to every small change in slope.
Gearing should not need to be extreme, but it should give you options. The max gradient of 6.61% is not severe, yet it is steep enough that a rider carrying fatigue or riding a heavier setup will appreciate a lower gear to keep cadence from bogging down. The mistake is not under-gearing for this climb. The mistake is over-gearing it, turning a manageable category 4 ascent into a muscular grind.
Bottom line
Collado de la Cruz is short, moderate, and tactically simple if ridden with patience. Keep the effort even, stay light on the steeper moments, and save the harder acceleration for the final part rather than spending it at the base.