Côte de la Corbienne from Bonnay

At just 1km, Côte de la Corbienne from Bonnay is short but deceptively intense — 59m of elevation packed into a brief, breathless effort. Averaging 5.8%, the road kicks to 10.1% 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 Picardie, France.