These 2 bike are like apples and oranges, the Bianchi is a low-end steel bike and the Fuji Track Pro is a race-ready CAT4 bike (I'd change the stem, bars, and pedals though). Just so you know, flex in a frame isnt bad if you're going for comfort, since it takes the edge off, for example on the street. but in an all out sprint, stiffness is where its at, especially in a velodrome. also know that aluminum tends to break whereas steel bends, Ive had an aluminum TREK mountain bike just separate at the seat tube on me before.