Dario Pegoretti, builder of bicycle masterpieces, dies at 62

When the comedian Robin Williams heard in 2008 that world-renowned Italian handmade-bicycle builder Dario Pegoretti was in the United States for the North American Handmade Bicycle Show, he flew on his private jet from his home in Tiburon, Calif., to the show in Portland, Ore.

Williams owned possibly the world’s biggest collection of bicycles by Mr. Pegoretti, who died Aug. 23 in Verona, Italy, of a heart ailment at 62.