Not that flexible at all. After a week of them scraping speedbumps and steep driveways I threw them in the trash. Upgraded to Rally Armor and haven't looked back.How flexible are the Basenor flaps? I see the picture of them flexing one of the flaps on Amazon, but I'd rather hear from someone who actually has them installed. I currently have the OEM Tesla fronts and the Nansure rears on order.