I have a 2007 Specialized Ruby Compact WSD 49cm. I am also 5'3" (but heavier than you). It fits great and is very comfortable. I have BIG hills, so I changed out the rear cassette to 12-32 IRD and the rear derailleur to a long cage 105. I understand that Shimano finally came out with a wide range cassette, too. The handlebars on this bike are a little higher than most road bikes, so you are slightly more upright. I think I need this because my arms are not that long and with a longer stretch my hands go numb. This bike really flies when the road has a slight downhill grade. I bought mine barely used on craigslist, but I wonder if you bought it new if you could get the dealer to change out the components so that you would not have that additional expense. I also wonder why they don't start offering that as an option in lieu of a triple.