So I know the Kilo TT's run kinda big... for example, if I ride a 56 normally, I would buy the 53 Kilo.

But what about the Pista? Is it the same?

I'm 6'0 with close to a 32 inseam, should I buy the 55cm or the 53cm Pista?

Any help would be much appreciated!

55cm no question.

i'd go 55

lol sigh

If anything you should be asking yourself, "55 or 57?" I'm 5'11", 31.5 inseam and the 55 fits me well.

^ +1. Roughly the same measurements here on a 56, and if I were going to ride a different size I think I'd rather go a little larger than a little smaller.