Evel Knievel, the hard-living motorcycle daredevil, whose bone-breaking, rocket-powered jumps and stunts made him an international icon in the 1970s, died Friday. He was 69. He had been in failing health for years, suffering from diabetes and pulmonary fibrosis, an incurable condition that scarred his lungs. He had undergone a liver transplant in 1999 after nearly dying of hepatitis C, likely contracted through a blood transfusion after one of his many spills. He also suffered two strokes in recent years. Longtime friend and promoter Billy Rundle said Knievel had trouble breathing at his Clearwater condominium and died before an ambulance could get him to a hospital. "It's been coming for years, but you just don't expect it. Superman just doesn't die, right?" said Rundle, organizer of the annual "Evel Knievel Days" festival in the daredevil's Butte, Montana, hometown.