Puerto de Mirabel cycling climb profile
Puerto de Mirabel is a compact category 4 climb in Spain, and the numbers make the basic riding demand clear: 1.4 km in length, 110 m of net elevation gain, starting at 451 m and topping out at 561 m. The listed average gradient is 7.91%, which puts it firmly in the short-and-steep bracket rather than the long rhythm-climb category.
That matters tactically. On a climb this short, the limiting factor is less about settling into a long aerobic grind and more about controlling the first surge. If you hit the lower slopes too hard, there is not much distance available to recover before the summit. The climb rewards a clean, controlled acceleration rather than a full-gas launch from the bottom.
How the gradient unfolds
The supplied profile does not include detailed segment-by-segment gradient splits, so the safest reading is to treat Puerto de Mirabel as a consistently steep effort from bottom to top. The climb rises from 451 m to 561 m across 1.4 km, which explains why it will feel direct almost immediately: there is simply not enough road for a long easing-in phase.
There is one data point worth handling carefully. The context lists an average gradient of 7.91% and a maximum gradient of 7.28%. Since a listed maximum would normally be at least as high as the average, the exact ramp detail should be treated as uncertain. Practically, that means the better conclusion is not that the climb has one specific decisive pitch, but that it should be ridden as a sustained category 4 ascent with little room for hesitation.
Pacing strategy
The best approach is to start just under the effort you think you can hold to the top, then let the climb come back to you. Because the distance is only 1.4 km, overpacing in the opening section is tempting, but it can turn the upper half into damage control.
If riding by power, anchor the effort around a hard but controlled output rather than chasing every change in road feel. Use /glossary/ftp as the reference point for judging whether the effort is sustainable or drifting into a short anaerobic burn. If riding by feel, aim for firm pressure on the pedals while keeping enough control to lift the pace near the summit rather than fading into it.
Gearing notes
Bring a gear that lets you keep pressure smooth at close to an 8% average gradient. The climb is short enough that strong riders may be tempted to muscle a bigger gear, but that only works if cadence stays controlled and the upper body remains quiet. For most riders, the better choice is to shift early, stay seated as much as possible, and avoid turning the first half into a strength test.
Puerto de Mirabel is not defined by length. It is defined by density: a small amount of road carrying a meaningful amount of elevation gain. Ride it patiently for the first half, then spend what is left once the summit is clearly in reach.