Bois de l'Estache from Oignies

At just 1.8km, Bois de l'Estache from Oignies is short but deceptively intense — 75m of elevation packed into a brief, breathless effort. The average gradient of 4.1% 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.