I live in a rural suburb of Buffalo. I have a combination of hills and flat rides. Most rides are about 300-500' elevation but nothing crazy like when I ride in Adirondacks. I have a Cannondale 2004 R600 8 speed 13/23 cassette. All Shimano components. I just ordered new front rings 53/39. SO I need a new cassette and chain as well.

Right now the shifting isn't that smooth. Just put on a new hanger as it was slightly bent. I'm looking for a smoother shifting experience with hopes this will improve my riding.

thanks