Duivelsberg

At just 1.1km, Duivelsberg is short but deceptively intense — 39m of elevation packed into a brief, breathless effort. The average gradient of 3.6% disguises ramps of 8.2% — 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 Flanders, Belgium.