Hierberberg from Berbourg

At just 1.9km, Hierberberg from Berbourg is short but deceptively intense — 67m of elevation packed into a brief, breathless effort. The average gradient of 3.6% disguises ramps of 9.3% — 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 Grevenmacher, Luxembourg.