Originally Posted by ahand

if you're looking at the 57 pista and the 57 kilo, you'll want a 59cm IRO. their sizes are a little different.

that said, i love my IRO. it's simple, it's a good middle ground between track and road geo (some call it aggressive road). it fits pretty big tires and fenders. i ride an angus but the mark v is just as great. my roommate owns a pista and it's alright, but i'm glad i went IRO