Evel Knievel, the hard-living, death-defying adventurer who went from stealing motorcycles to riding them in a series of spectacular airborne stunts in the 1960s and ’70s that brought him worldwide fame as the quintessential daredevil performer, died yesterday in Clearwater, Fla. He was 69.

Mr. Knievel had been in failing health for years with diabetes and idiopathic pulmonary fibrosis, an incurable lung condition. In 1999, he underwent a liver transplant after nearly dying of hepatitis C, which he believed he had contracted from a blood transfusion after one of his many violent spills.

By his own account, he underwent as many as 15 major operations to relieve severe trauma and repair broken bones — skull, pelvis, ribs, collarbone, shoulders and hips. “I created the character called Evel Knievel, and he sort of got away from me,” he said.

He had a titanium hip and aluminum plates in his arms and a great many pins holding other bones and joints together. He was in so many accidents that he occasionally broke some of his metal parts, too.

His health had also been compromised by years of heavy drinking; he told reporters that at one point he was consuming a half a fifth of whiskey a day, washed down with beer chasers.

R.I.P.