Hautes des Froidmont from Hallembaye via Thier des Bruyères

At just 1.7km, Hautes des Froidmont from Hallembaye via Thier des Bruyères is short but deceptively intense — 75m of elevation packed into a brief, breathless effort. The average gradient of 4.4% disguises ramps of 12.1% — the kind of gradient that turns plans into prayers. It's over before the legs know what happened — a short, explosive effort where momentum is everything. Located in Wallonia, Belgium.