GoPro video shows 24-year-old Jesse Lopez racing up Glendora Ridge Road on April 1 with another biker, when he came to a blind curve and crashed into the firetruck. His GoPro camera went flying off his helmet and captured him laying on the ground as it flew in the air.
"Especially head-on, you don't think many people would survive that. Guess he's lucky to be alive," his friend Angelo Guerrero said.
WARNING: This footage contains material that some viewers may find disturbing due to explicit language and/or the graphic nature of the material.
Lopez's friend picked up the camera, nervously pacing as crew members rushed to help Lopez, who suffered two compound fractures in his left leg and a severely broken arm. He was later airlifted to a trauma center.
California Highway Patrol investigators said no one in the firetruck was hurt.
Lopez had only owned his motorcycle for seven months at the time of the crash. Watching the video was like watching a movie about someone else, he says.
"When I saw what happened, I got shocked. I was like, 'Woah!'" Lopez said.
He wants to share the video in hopes of saving other riders from his life-changing lesson.
"Be aware. Be more cautious when riding. Don't do what I did," Lopez said.