When hea??s not building the worlda??s most desirable Ducati road bikes, Walt Siegl likes to head for the racetrack on his 916 or 1098. But hea??s a hard rider, and h

When hea??s not building the worlda??s most desirable Ducati road bikes, Walt Siegl likes to head for the racetrack on his 916 or 1098. But hea??s a hard rider, and h