Bibliothèque des cols
Les ascensions célèbres du cyclisme
Profils détaillés des cols qui font la légende du cyclisme — longueur, pente moyenne, dénivelé, historique des courses et conseils d'allure.
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4165 cols
Col de la Bernatoire
22.2 km at 6.09% with pitches to 11.9%, climbing 1352 m from 909 m to a 2261 m summit — a genuine HC test.
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Collado de Pietramula
A relentless HC monster: 22.1 km at 6.41%, climbing from 743 m to 2157 m for 1414 m of net elevation gain.
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Colle di Valcavera
22 km at 7.52% and a summit at 2403 m — Valcavera is an HC grind that piles on 1654 m of net gain and spikes to 23.58%.
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Passo del Muretto
22 km of hors catégorie climbing from 387 m to 1917 m, a relentless 6.97% average that ramps to a savage 29.45% max.
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Passo di Brealone
21.9 km at 7.83%, climbing from 399 m to 2117 m — an HC monster that gains 1718 m with ramps hitting 21.9%.
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Ōdarumi Pass
A data-driven profile of Ōdarumi Pass, a 21.8 km HC climb in Japan gaining 1,834 m net to a 2,358 m summit, with undulation, pacing, and gearing notes.
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Col du Pic à Talon
21.8 km at 6.86% with a savage 28.63% max ramp, climbing from 416 m to 1908 m for 1492 m of net gain — a true HC test.
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Colle Portola
21.7 km of relentless Italian HC climbing at 8.67% average, hauling you from 524 m to a 2404 m summit for 1880 m of net gain.
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Passo del Cristallo
21.7 km at a brutal 10.64% average, climbing from 392 m to 2698 m for 2306 m of net gain — a true HC monster.
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Col du Fornet
21.4 km of relentless HC climbing at 6.99% average, gaining 1495 m to a 1906 m summit with pitches spiking to 32.12%.
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Col de l'Encarnette
21.3 km of relentless climbing at 6.99% average, 1490 m of net gain, and a savage 29.67% ramp that earns its HC rating.
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Kaltwasser Pass
At 17.72% average gradient over 11.1 km, Kaltwasser Pass in Italy is one of the most brutally steep HC climbs in the Alps. Here's how the numbers shape your ride.
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Porta Sestrera
21.1 km at 8.35% climbing from 522 m to 2284 m, with a savage 27.43% pitch — a full HC test of patience and legs.
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Passo del Cerighetto
20.8 km at 7.17%, climbing 1492 m from 58 m to 1550 m with a brutal 20.63% ramp — a full-blown HC ascent.
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Passo di Valtendra
A 20.3 km hors catégorie climb in Italy with 1,768 m of net gain, punishing ramps, and undulation that adds real cost to the effort.
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Passo di Giovo
A 20.6 km HC monster averaging 7.33%, rising from 58 m to 1567 m with pitches that spike to 22.79%.
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Passo del Dil
20.6 km at a punishing 8.04% average, climbing from 62 m to 1715 m for 1653 m of net gain — a true HC test.
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Alto de Conejo
20.5 km at 8.47% averaging brutal, hauling you from 2209 m to 3942 m for 1733 m of net thin-air climbing.
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Passo della Mezzaluna
20.3 km at 6.36% average, ramping to 15.49%, climbing from 159 m to 1453 m — a full HC ascent with 1294 m of net gain.
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Passo di Monscera
20.3 km at a brutal 8.94% average, ramping to 22.54%, hauling you from 249 m up to a 2063 m summit.
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Passo di Rocca Brancia
20.3 km at 7.76% average, spiking to 18.4%, lifting you from 1037 m to 2611 m for 1574 m of net gain — a true HC test.
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Col de la Case d'Oche
20.2 km at 7.38% averaged, with a savage 27% pitch and 1495 m of net gain to a 1887 m summit — a true hors catégorie ascent.
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Croix de Coeur
A 20.2 km hors catégorie climb in Switzerland gaining 1,710 m net to a 2,174 m summit, with heavy undulation that inflates the real workload.
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Passo del Miller
20.2 km at 8.36% average, ramping to a brutal 29.33% max, climbing from 418 m to a 2107 m summit — a genuine HC monster.
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