I started at 10. I had enough time. I split the climb. Today 1.500 meters to Pradollano a ski resort in the Sierra Nevada on a height between 2.100 to 2.400. And tomorrow the summits.
The road to Sierra Nevada is comfortable for cycling with a wide shoulder. Not to steep. I believe mostly 6 % sometimes 8 %.
Very less traffic. Only the German automotive industry tested their climate killer cars and drove up and down all the time. Mercedes, BMW, Porsche, Audi. Also some MAN trucks.