Rue du Bois des Queues from Piétrebais

At just 1.2km, Rue du Bois des Queues from Piétrebais is short but deceptively intense — 51m of elevation packed into a brief, breathless effort. The average gradient of 4.4% disguises ramps of 14.5% — 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.