Rue des Scailleux from Leval-Trahegnies

At just 1.3km, Rue des Scailleux from Leval-Trahegnies is short but deceptively intense — 51m of elevation packed into a brief, breathless effort. The average gradient of 3.9% disguises ramps of 9.5% — 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.