[katz]

Maybe I am a little slow...is it the color scheme, or what exactly makes this a "Women's only" bike?

 

[davereo]

Bike frames are now being designed with womans anatomy in mind. The geometry on these models are designed to suit womans specific needs.

Some bike manufacturers have added "WSD" to the model names indicating "Woman Specific Design".

 

[zero3one]

Women's bikes tend to be smaller than men's bikes. They also have slightly shorter top tubes and/or stems, the geometry is a little different to accommodate the woman's anatomy and generally narrower bars.

 

[Industry_Hack]

Because the parts above and below a woman's waist have different proportions than men's bodies. Although I think only Rivendell truly understands frame design for women.

 

[katz]

Narrower/smaller frames, etc. for smaller featured bodies. Ahhh...ok, it makes sense to me now.

Although, I suppose a bike like this would be well suited for a smaller male rider, maybe a guy under 5'6"?