Hey thanks for looking out!
I'm not even exactly sure about my exact frame size, but the size Medium Sirrus I rode the other day was perfect, and my Stumpjumper is perfect for me too. I'm 5'9" with average proportions (but heavy) and 56 yrs old. That Bianchi Virata looks great and since it's a medium it would probably also be right, but I'm for sure looking for a straight handlebar bike, racing handlbars DESTROY my back!
Thanks again!