It all depends on your body. A marketing strategy, probably, but the truth is the WSD bikes work really nice for some women. But they also work really great on some guys too, lol. I sold a WSD bike to a very leggy and rather short man last week and though he was not crazy about the paint job he was smart enough to realize he could 'guy' it up a bit and also have the comfort factor too. It's kinda funny now since us girls are usually 'girling' our boring male oriented paint jobs up to make them more 'ours'. At our shop we go by Serotta's proportion fitting system and it will then pull up a whole list of bikes, sizes, manufacturers that have the best lengths and combos of tube to best fit that person. I won't say its a perfect system b/c everyone has different mobilities too.

All that aside I'm a girl and I ride a WSD. I got lucky and found a bike that worked really awesome for me. I did get a custom fitting done on it too where me and my fitter tweaked some things. See not perfect though! Fittings are just so important.