That's why I'm asking. I'd like to put Shimano Ultegra parts. I have those on my new Cannondale and I love 'em. The cables will be no problem. I figured I would need to switch out the rear derailluer as well, but was unaware that I would need new shifters. Thanks for the info. I'm going to price this all up to see if it's worth it (I also need new rims!).