Rue d'Alzingen from Syren

At just 0.8km, Rue d'Alzingen from Syren is short but deceptively intense — 50m of elevation packed into a brief, breathless effort. Averaging 6.6%, the road kicks to 10.5% at its steepest — a testing gradient that demands respect. The 1 hairpin turns break up the climb, each one revealing a new perspective on the road ahead. Located in Luxembourg, Luxembourg.