Col du Rosier is a climb of 4.8 kilometers (category 3). Col du Rosier tops out at 556 m above sea level. It is located in La Gleize, Liège, België / Belgique / Belgien. The average gradient is 5.3% with a maximum of 9.2%. The climb has 258 meters of elevation gain.
Difficulty analysis: The Col du Rosier from Ruy is a 4.8 km climb with 258 m of elevation gain, at an average gradient of 5.3%, which earns it a Category 3 rating. The effort is steady: most of the climb sits between 5% and 7%, with no really steep section. The start, at 4% over 0 to 0.5 km, gives you a gradual warm-up, and the finish, at 3% from 4.5 to 4.8 km, lets you recover a little. The difficulty lies mainly in the length and the consistency of the effort.
Tips for pacing yourself:
1. Don't start too fast. The first 500 metres at 4% are tempting, but keep a moderate cadence so you reach the 0.5 to 1.0 km section, where the gradient ramps up to 7%, with legs still fresh.
2. Hold a steady cadence between 3.0 and 4.5 km. On this consistent 5% stretch, pick a gear that lets you hold a steady cadence and avoid surging and fading, which burns a lot of energy.
3. Save something for the finish. The last section, from 4.5 to 4.8 km, is easier at 3%. This is the perfect moment to open up and finish the climb strong.
One cyclist who rode over the Col du Rosier finds it beautiful, and he says so plainly. Another wrote "Magnifique", which sets the tone for what gets said about this col.
The col hosted Liège-Bastogne-Liège 2022. The account remembers it as a great place for the race, but also notes that the edition was marked by a big crash.
There are few accounts so far, and they're short. They say nothing about the road, the gradient, the traffic or the feed zone, so there's no more to know here.
4.8 km • 258 m D+
VAM: average climbing speed, based on elevation gain
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