Good question, I have a Venturi, and a Bianchi Pista myself, and I have an old sport touring bike ( a Zebra) I just converted from fixed to single speed. For longer rides and going fast, it's the Venturi. For quick exercise rides, it's the Pista. The Zebra, I think, will be for just casual rides around town, errands, with friends, & such. With it's longer geometry, plus carbon fork & seatpost I put on it, it's cushy, but it feels soft & flexy compared to the others.