Love this one
http://www.youtube.com/watch?v=vAe1KoHgtwM
But this one is better
http://www.youtube.com/watch?v=NV6OWu1IgFE
And a classic bike advert 
http://www.youtube.com/watch?v=EyNq_UK0OBQ
Just to redress the balance a GSX-R ad.
http://www.youtube.com/watch?v=NszughQFLI0&mode=related&search=