Les Petits Sarts via Rue du viaduc

At just 0.8km, Les Petits Sarts via Rue du viaduc is short but deceptively intense — 41m of elevation packed into a brief, breathless effort. Averaging 5.2%, the road kicks to 9.1% at its steepest — a notable steepening that demands respect. It's over before the legs know what happened — a short, explosive effort where momentum is everything. Located in Wallonia, Belgium.