Originally Posted by
RollCNY
For what it is worth, the archived 2013 Bianchi Impulso 105 link says BSA bottom bracket. I would post the link, but it is difficult on my tablet. Frustrating, more than difficult. Heck, let's try:
Impulso 105 | Bianchi USA
That looks right to me. And the crank is coordinated with that BSA BB. Its a Mega Exo compatible crank. That means it will accept the Mega EVO oversize BB bearing cups for sure.