So-called 'flexi wings' have become one of the big talking points in Formula 1 this season as attention has been drawn to how much some teams' rear wings are moving at high speed.

    It's a complex issue – which you can read about in more detail here – but one thing we do know for sure is that the FIA are changing the way they test the wings after this weekend's race in Azerbaijan.

    So how exactly are F1's governing body going to police them? Sam Collins and Craig Scarborough explain all in the free preview of this week's F1 TV Tech Talk show in the video above.

    The full episode can be found on F1 TV - click here for information.