I have a 2001 Bianchi veloce road bike with a spindle-type BB and 3 chainring crankset. Is it possible to replace this setup with the Campy ultra torque compact crankset that utilizes only 2 chainrings? Since the compact crankset uses cups to install, is it just a matter of using the existing treads to screw the cups in and then install the crankset? I know I will need a new rear cassette to get the best results, but will I also need a new derailler or can I simply adjust it to accomadate the double chainring? Any answers will be greatly appreciated!