Input (grade 9): Also known as LÃ nia de Balmes, as it climbs Carrer de Balmes uphill into Tibidabo, it shares three stations with FGC L6.
Output (grade 4): It is also called LÃ nia de Balmes, because it climbs Carrer de Balmes uphill into Tibidabo. It shares three stations with L6.