Sorry I'm getting here late.

I'm glad you found something for your GF, but if she rejects it, my wife is only 5'1" and she comfortably fits this:

http://www.diamondback.com/bikes/per...ids/insight-1/



It's a HYBRID, but it does have 700c wheels. My wife has a size Small (15" frame).

My wife isn't a serious cyclist, but does find this bike very comfortable. If she ever starts putting in real mileage, we can always swap out the fatter rubber for skinnier road slicks, but for the time being, it's perfect. And best of all, she loves it.