Originally Posted by the beef
"Significant weight"? Totally not true. Don't know how that came up. You'd save as much weight from a compact double over a triple as you would by throwing half a Clif bar over your shoulder, at the very most.
Well let's see... a Tiagra triple crankset weighs 950 gr plus 262 gr for the bottom bracket. An FSA compact including the bottom bracket is 776 gr, 950 + 262 - 776 = a reduction of 436 gr. Replacing the triple derailleurs with double derailleurs and with a smaller cassette the weight reduction will be well over a pound. That is definitely significant to a crit racer. And I don't know where you buy your Clif bars but they're a lot heavier than the ones I've picked up.