The motorcycle daredevil passed away today, his granddaughter confirmed. He was 69.

He had been in failing health for years, suffering from diabetes and pulmonary fibrosis, an incurable condition that scarred his lungs.

Knievel had undergone a liver transplant in 1999 after nearly dying of hepatitis C, likely contracted through a blood transfusion after one of his bone-shattering spills.

R.I.P., buddy.