Yep, in a cloudy, cool, and breezy day. Butcher's Bill when I got home and inspected the new Armadillos.... one thorn pulled out of the rear wheel and FOUR thorns pulled out of the front wheel. On the old Mondos that originally came with the Allez, a single thorn would have resulted in a flat. But the Dillos more than held their own. No flats. After i pulled the thorns, the tires sealed right up.