Fond de Boly from Sosoye

At just 1.3km, Fond de Boly from Sosoye is short but deceptively intense — 71m of elevation packed into a brief, breathless effort. Averaging 5.6%, the road kicks to 10.5% 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.