@sporino@vicenzonibali @NBCSNCycling It is hard to say, video doesn't really show it but a plausible explanation. Very similar to Armstrong in 2003 but in his case it was a cap and he had no serious injury... It sucks that Nibali's tour ended this way.
@sporino Are all teams/riders using disk brakes in this TdF? Any challenges when changing tires during the race? Like the new camera angle during the in-race reports. Good video quality!