I don't understand Spanish so I'm not sure what is said at the end, but that is not important. What is important is just how insane you need to be to take this path! The following is how the youtuber describes this crazy extreme urban bike path:
"The Valparaiso Cerro Abajo Race is a legendary urban bike race and is more extreme than skydiving. The rider must brave jumps, stray dogs, and flights of stairs along the steep downhill path."