Which Italian rider has won 15 world titles in Grand Prix motorcycle racing?
Giacomo Agostini
Valentino Rossi
Marco Simoncelli
Loris Capirossi
Answer
Giacomo Agostini is the most successful rider in Grand Prix motorcycle racing history, with 15 world titles and 122 race wins. He dominated the sport during the 1960s and 1970s, riding for both MV Agusta and Yamaha.
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