Following a flat to rolling warm-up the riders reach the foot of the Col de Romme after approximately 80 kilometres. From this moment on it’s all systems go. The Romme is an 8.8 kilometres climb with an average gradient of 8.9%. The first 3 kilometres are tough as these are averaging 9.8%. The seventh kilometre is another tricky section with an average slope of 10%. The summit is not really the summit as the climb goes on as a false flat for around 2 kilometres before a 4 kilometres drop leads to the the base of the Col de la Colombière.
De Col de la Colombière is a 7.5 kilometres ascent at 8.5%. In comparison, the first 2 kilometres are the easiest part of the climb, but after this the gradients are 9% or more. The sixth and the seventh kilometre are steepest as these are averaging 10.2% and 9.7%. After cresting the women plunge down a 12 kilometres descent into Le-Grand Bornand.
La Course 2018: Height profiles, and more
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