I was hoping for a nice 36 mile ride on this balmy 38 degree day. Almost halfway in and I get a flat on the right curbside tire. This is the 3rd flat on this tire in a week. I have checked the tire and all flats are in different areas. So much for Continental Contact 2 "Safety System Breaker". Too bad, I like these tires and was going to put them on my other trike. Beefy 1.75, not too heavy, roll easy and have a soft supple ride. I also got a flat recently on my Stratus with a different Continental Sport Contact tire. I guess I will be going back to Schwalbe. I got as many flats in the last 2 weeks as I did in the last 2 years. It's not the tires fault, it's mine for telling Kit, "I am not flat prone".