Sandra: you and I fit the same according to the "fit" kit, and when I had my 50cm Jamis Quest, it fit like a dream. You can always make minor adjustments with the stem, but I honestly think, (based on my Jamis experience) that the 48cm would be too small for you. But then again, I think that the Quest has a more aggressive "racing" geometry than the Aurora, so I think that makes it even better.