Col du Rosier is a climb of 9.5 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 3.7% with a maximum of 7.7%. The climb has 355 meters of elevation gain.
Difficulty analysis: The Col du Rosier from Cheneux is rated Category 3, covering 9.5 km with 355 m of elevation gain and an average gradient of 3.7%. The first two kilometres, at 5% then 4%, already demand some commitment before a more variable stretch between 2.0 and 5.0 km, alternating between 1%, 2% and a short steep ramp at 4% between 2.5 and 3.0 km. The real test comes between 5.0 and 7.5 km, where the gradient stays between 6% and 7% over five consecutive sections, before a steady final third at 3% then 4% all the way to the top.
Tips for managing the effort:
1. Pace the start. On the first 500 m at 5%, stay seated and settle into a steady rhythm so you reach the central block with something left in the tank.
2. Recover on the flat bits. Make the most of the 1% sections between 2.0 and 2.5 km, 3.0 and 3.5 km, or 4.5 and 5.0 km to relax your shoulders, drink and catch your breath.
3.控制 the 6-7% section. Between 5.0 and 7.5 km, hold a steady power output rather than surging, then push progressively over the last 2 km at 4%.
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.
9.5 km • 355 m D+
VAM: average climbing speed, based on elevation gain
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