Col du Rosier is a climb of 9.4 kilometers (category 2). Col du Rosier tops out at 556 m above sea level. It is located in Theux, Liège, België / Belgique / Belgien. The average gradient is 3.8% with a maximum of 10.5%. The climb has 356 meters of elevation gain.
Difficulty breakdown: The Col du Rosier from Marteau is a 9.4 km climb with 356 m of elevation gain, averaging 3.8%, which puts it in Category 2. The real difficulty is in the second half: between KM 4.0-4.5 and KM 9.0-9.4, the gradient stays between 5% and 9%, peaking at 9% at KM 4.5-5.0. The first kilometres, up to KM 4.0-4.5, are more rolling, with gradients between 1% and 4% and a short descent at KM 3.0-3.5. The clearest breather comes at KM 6.5-7.0, where it eases to 2%.
Tips for the effort:
1. Pace yourself from the start. Keep a steady effort over the first kilometres (KM 0.0-4.0) so you arrive at the foot of the steepest section with fresh legs.
2. Tackle the 9% section smoothly. On KM 4.5-5.0, stay seated, keep a high cadence and avoid mashing gears that are too hard.
3. Recover on the KM 6.5-7.0 breather. Use the 2% section to drink, fuel up and loosen your legs before the final kilometres at 6%.
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.
9.4 km • 356 m D+
VAM: average climbing speed, based on elevation gain
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