Puerto de El Duque is a Category 1 climb in Sierra Nevada — 8.28km at 7.8% average gradient, cresting at 1,670m. It comes 31.4km from the finish of Stage 20 of La Vuelta a España 2026 (La Calahorra → Collado del Alguacil, 186.8km). Set your groupset — Shimano, SRAM, Campagnolo or a custom setup — and see exactly which gears get you up it, kilometre by kilometre.
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