The 56cm is a guesstimate, the top tube is just over 55 and the seattube is 54cm but its big for me and I normally ride a 54cm with 55 top tube (I'm 5ft10). The former owner usually rode 58cm bikes. I can't find any info on the internet about this frame to figure it out.
Frame is red, with a black bontrager carbon fork. Its a mavic front wheel and surly single speed rear. Has an FSA carbon crank but I have other cranks if you wish.
I inherited from a friend. He would want you to "race the shit" out of it for him so I'm only really interested in selling it to someone who will race it as per his wishes.