Flats? I’ve had a few thorns, 3 total. But since I’m running tubeless, all I did was pull them out and keep riding. I really don’t have anything negative to say about the WTB Wolverine 2.2. I think they are awesome tires, works great as a front and rear, plus they are fast! I’ve never had issues with the sidewall getting torn or punctured. If I need to remove the tire, the bead is super easy to work with. Installing is a breeze and they worked with my Ghetto Tubeless Conversion.