my apologies, please post more about your twenty year old automobile.
an IRO angus 56cm is 3.9 lbs or 1770 grams. plus the frameset is only 200, and made out of reynolds 631.
assuming IRO is still shipping them.
however it's no where near as stiff as the precursa and i'd rather have the precursa for racing.
Last edited by cc700; 03-28-12 at 11:45 PM.