Here in Holland you get everyone. That's because the infrastructure, lifestyle, and types of bicycles are conducive to all types of people, even the fragile girlies who want to wear nice clothes and look pretty. But at least nobody here leans on the old "my hair, my hair!" excuse. That's just sad.

The problem is that in countries like the US you really do have to be more wild and aggressive to ride a bicycle regularly. The environment is not conducive to women - at least in the context of most peoples' views that bicycle riding is for freds, freaks, and **** ups.

As a generalisation, women fuss over their delicate image too much and will happily use that as an excuse to not ride. In the end, it's all just excuses, ignorance, and unhealthy lifestyles.

edit: I do not think women are all "silly fragile girlies" - that was just a generalization which is IMO perfectly valid for a particular segment of the female population. And there are plenty of cretins and toolbags on the males side too, as we all know. A woman who's not afraid of getting dirty is a huge turn-on, but sadly rather rare.