Not since yesterday right after lunch. I walked past my bike sitting in the back at work, and noticed
a small light brown object on the tire. I got closer and realized it was a small grass thorn. Probably just stuck to the tire I thought. I brushed it off and pssssssssssssssst, there goes my air. If Serfas Flat Protection System can't stand up to a common grass burr, what good is it?? My confidence in these tires is blown (no pun intended ),,,,BD
The tires are Serfas Drifter "dualsport" 2.1's, on a urban ridden mtb.