A family source tells us he's been in hospice care for the last few days after a battle with cancer. He died early Friday morning.
Robbie, also known as "Kaptain Robbie Knievel," followed in his dad's footsteps from a young age -- jumping his bike at only 4 years old, and first performing at Evel's show at Madison Square Garden when he was 8.
He went on to perform over 350 jumps in his career, setting world records for 20 of them. One of the most memorable was successfully jumping the fountains at Caesars Palace in 1989 -- a feat his father tried and failed at in the past.