Quote Originally Posted by FitFreak View Post
even though it wasn't the right size (I need a 48 cm and this was 51 cm) it was good.
Are you sure you need a 48? Is that just going by the standover height, or is the top tube too long for you? If it's just the standover, do you have any clearance at all?

If it feels good, chances are it's the right size for you. If you're not sure, ask your BF or the LBS guys to watch you on it.