Alto de l’Angliru is one of the most feared and legendary climbs in cycling and is often used in the Vuelta a España. Originally the road to the top had been no more than an old cattle track and was not known as a cyclist route, but the organisation of the Vuelta a España had the desire to find climbs to rival those in the Tour de France and Giro d’Italia.
Not only you, but also the pro’s are forced shifting to lower gearing. Introduced in 1999, it was in 2002 when David Millar refused to finish the stage and got disqualified. He threw is racing number on the floor just meters before the finish line screaming “We’re not animals and this is inhuman”.
The steepest part is 3km from the summit with a gradient of 23.6%. In total you will climb a distance of 12.5 kilometers from 340 to 1575 meters. The first five kilometres are an average of 7.6%, stiff but not over demanding. The sixth kilometer will give you some kind of break with a gradient of 2.1% and a short descent. Maybe you can duck into a cafe at this time for a hit of caffeine before the real fun begins. From this point it’s about six kilometers to the top with an average of 13.1%.