Climb library
Famous climbs of cycling
Detailed profiles of the climbs that define the sport — length, average gradient, elevation gain, race history, and pacing advice.
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3781 climbs
Aceretta pass
A 26 km category-1 grind averaging 4.48%, climbing 1164 m from 373 m to a 1537 m summit with pitches touching 9.45%.
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Rengglipass
A 25.1 km Category 1 Swiss climb where a modest 4.52% average hides 2,560 m of total ascent and a savage 37.9% ramp.
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Collado de Izas
A 24.8 km category 1 grind averaging 5.59% that hauls you from 847 m to 2234 m, with ramps spiking to 21.71%.
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Red Box
Red Box is a 24.4 km Category 1 US climb whose modest 4.69% average hides steep ramps and over 1,500 m of extra ascent from undulation.
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Col de l'Arpalle
A 23.9 km category-1 grind climbing 1320 m to 2030 m at 5.53% average, with ramps that bite up to 15.64%.
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Coll de les Llebres
A 23.5 km category 1 grind rising from 19 m to 1006 m at a steady 4.2% average, banking 987 m of net gain.
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Coll de Montaner
A 23.2 km category 1 grind averaging 5.67%, climbing 1318 m from 823 m to 2141 m with a savage 26.19% pitch.
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Col du Pralère
A 22.5 km category 1 grind that averages 4.72% but spikes to 24.41%, hauling you from 379 m to 1442 m.
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Passo del Casello
A 22.4 km category 1 grind climbing from 80 m to 1057 m — 977 m of net gain at a deceptive 4.36% average with a 14.75% sting.
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Colle Lazoney
A 21.9 km Category 1 grind averaging 5.78%, climbing 1265 m from 287 m to 1552 m with a savage 27.67% pitch.
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Colle del Loo
A 21.9 km category 1 haul climbing 1265 m at a 5.78% average, with a savage 27.67% pitch waiting to break you.
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Passo di Gaina
A 21.7 km category-1 grind averaging 4.98%, climbing from 1261 m to 2343 m for 1082 m of net gain.
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Collado del Piornal
21.7 km of Spanish climbing at 5.71% average, launching from 902 m and cresting at 2142 m for 1240 m of net gain.
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Puerto de Santa Inés
A 21.1 km category 1 grind climbing 998 m to 1881 m at a steady 4.73% average, with ramps spiking to 11.6%.
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Col de l'Alpette
At 21.1 km with an average gradient of 5.94% and a brutal 32.88% maximum, Col de l'Alpette is a Category 1 climb that demands careful pacing and smart gearing from the first pedal stroke.
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Collado Guayes
A 20.6 km category 1 grind climbing 1041 m at a steady 5.06% average, ramping to 8.1% at its steepest.
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Taraz Pass
A relentless 20.3 km category 1 ascent averaging 6.04%, climbing 1226 m from 1018 m to a 2244 m summit.
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Coll de la Cabana
A 20.3 km category 1 grind climbing 916 m from 712 m to 1628 m at a steady 4.51% that never lets you settle.
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Coll de Santa Helena
A 20 km category 1 grind climbing from 151 m to 1225 m at 5.37% average, with a savage 11.03% pinch waiting to break you.
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Passo di Alpisella
A 19.9 km category-1 grind climbing 1060 m at 5.32% average, spiking to a brutal 26.97% pitch on the way to 2293 m.
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Col de la Vache
A 19.8 km Category 1 grind climbing 1104 m at a steady 5.58%, from 779 m up to a 1883 m summit.
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Puerto de Escalé
A Category 1 haul: 19.8 km at 5.49% average, climbing from 587 m to 1672 m with a brutal 20.75% max ramp.
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Passo del Gotro
A 19.6 km category-1 haul climbing 1012 m from 669 m to 1681 m at 5.17% average, with ramps spiking to 11.45%.
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Col de la Golèse
19.2 km at 5.44% averages deceptively easy, but a 25.12% wall and 1041 m of net gain make this a genuine Category 1 test.
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