Rue du Quatrième Régiment d'Infanterie Française from Signeulx

At just 1.4km, Rue du Quatrième Régiment d'Infanterie Française from Signeulx is short but deceptively intense — 48m of elevation packed into a brief, breathless effort. The average gradient of 3.5% disguises ramps of 10.8% — 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 Lorraine, Belgium.