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The Ljubelj Pass, sitting at 1,367 meters in the Karawanks range, is one of Slovenia’s most historic and memorable cycling climbs. Linking the town of Tržič in Slovenia with Austria’s Carinthia region, Ljubelj is not just a road through the mountains but a ride through history, offering cyclists a blend of demanding gradients, dramatic scenery, and cultural significance. The climb begins in Tržič, where the road soon rises above the valley and sets the tone for what lies ahead. Gradients are steady at 6–8%, but several ramps push harder, requiring strength and rhythm. Unlike longer alpine ascents, Ljubelj is relatively short—around 7 kilometers from the Slovenian side—but it packs a solid punch, especially when ridden at pace.
Halfway up, the modern road diverges from the infamous old Ljubelj road, a rough, cobbled path carved by prisoners during World War II. Many cyclists still ride this historic section, which is steep, uneven, and brutally challenging but deeply atmospheric. Tackling this cobbled relic feels like stepping into another era, a reminder of the human suffering and resilience tied to this mountain pass. The modern summit is marked by a tunnel that pierces the Karawanks and connects Slovenia with Austria. Standing at the top, cyclists are rewarded with sweeping alpine views, cool mountain air, and the satisfaction of crossing one of Europe’s oldest alpine passes—used since Roman times. Whether taken as part of a long transalpine ride or as a standalone challenge, Ljubelj is a climb that combines physical demand with history and scenery. It may not be the highest pass in Slovenia, but it remains one of the most iconic, offering cyclists an unforgettable ride through the heart of the Karawanks.