Strma reber
This climb is part of Dolenjska region. Strma Reber is a steep cycling climb above Osilnica, featuring relentless 8–10% gradients and spectacular stacked switchbacks. Remote and quiet, it rewards riders with stunning views over the Kolpa Valley and Croatia.Average gradient: 8.1%
Elevation difference: 660m
You start at 305.7m and finish at 965.6m
Athletes climbed: 921 View on Strava
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Strma Reber – Slovenia’s Alpine-Style Climb in the South
Strma Reber, a mountain pass in southern Slovenia near Osilnica, is one of the country’s most dramatic and challenging road climbs. Rising to around 993 meters, this ascent is famed for its sweeping switchbacks, steep gradients, and stunning views of the Kolpa Valley and the bordering Croatian hills. For cyclists, it represents a hidden gem—remote, demanding, and visually spectacular. The climb usually begins in the village of Osilnica, Slovenia’s smallest municipality, nestled deep in the Kolpa River valley. Almost immediately, the road rears upward, signaling what is to come. The gradients are unrelenting, often holding steady at 8–10%, with some stretches biting even harder. Unlike longer alpine climbs such as Vršič or Pokljuka, Strma Reber is shorter, but it compensates with intensity and relentless ramps that push riders to their limits.
Strma Reber – Switchbacks Above the Kolpa Valley
What makes Strma Reber truly memorable is its design. A sequence of perfectly engineered hairpin bends stacks one above the other, creating an almost alpine atmosphere reminiscent of legendary climbs in the Dolomites or the French Alps. Each switchback not only offers a momentary relief from the gradient but also reveals ever-expanding panoramas of the valley below. The higher you climb, the more dramatic the scenery becomes. At the summit, cyclists are greeted with a sense of peaceful isolation. There are no busy mountain lodges or tourist crowds—just the silence of the forest, the crisp mountain air, and the satisfaction of having conquered one of Slovenia’s steepest road climbs. The descent is equally thrilling, with hairpins demanding focus but rewarding with flow and speed. Strma Reber may not yet hold the fame of Slovenia’s northern passes, but for those who discover it, the climb delivers everything: challenge, beauty, and the feeling of riding a true hidden classic.
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