Try lunacycles.com. They build tiny road bikes for women. They don't use the 24" wheel Terry uses (and it is hard finding tires other than those terry offers, which aren't very good). They will use 650c wheels, or, if you want, 26" ATB rims with super-narrow slicks ( a great idea, I think, as these wheels are even smaller than the 650c's). I bought a 'cross frame from them with 26" wheels, and I find it works really well for my size and the riding I do.