I've just recieved the C-Record gruppo I bought from John Taglia. It has 172.5 cranks, whereas 170 is best for me. Anyone have some 170's they want to trade? The cranks are not NOS, but in very nice used condition. The only small criticism might be that the hex self-extractor holes show a bit of rounding off. If you have really mint extractors, we can trade the cranks less extractors, so you can keep yours. Chainrings are 53 x 42. If you like your combo better, we can trade just the arms without rings.