Côte du Promontoire from Nonceveux

At just 0.8km, Côte du Promontoire from Nonceveux is short but deceptively intense — 53m of elevation packed into a brief, breathless effort. Averaging 6.6%, the road kicks to 10.3% at its steepest — a testing gradient that demands respect. It's over before the legs know what happened — a short, explosive effort where momentum is everything. Located in Wallonia, Belgium.