All this talk of eclectic 80's parts reminded me a of question... I've got a set of Avocet/Ofmega triple cranks with a 144mm BCD and two sets of holes drilled for the granny. One is 74mm BCD - what is the other? Is this the same size as the Campy NR/SR triple cranks or some Avocet/Ofmega proprietary size? It looks like it will take a 32t small ring. Many thanks, Byron Morton Nashville, TN