I strap these to my Zipp 202's on race day since it is a racing tire. In conjunction, I use the Vittoria latex tubes which will take the tire to the next level for super fast rolling and a comfy ride. I have not experienced any flats on race day so far. I have used the Conti 4000S, but in my opinion the open corsa are faster and corner very well. They fit my Zipp 202's really well and I am able to get them on in about 30 seconds using only my fingers. That is important because if I do flatten, it can get it changed super fast. Like I said, this is my race day tire, it may not be as durable mileage wise or offer bomb proof flat protection as say a training tire, it does serve it's purpose on race day and that's what I want. I run mine at 110/115.