A few words of advise, first, make sure you get a brand/model that fits you well, that is by far the most important. Don't get stuck on a specific brand or model just because it comes recommended... it may or may not be right for you.
Regarding women's bikes... you can divide these into 3 categories. Ground up design, where the carbon layup, geometry, and contact points
(handlebars and saddle primarily
) are all uniquely adjusted to fit a shorter and lighter woman. In general, women are shorter than men, and tend to weight less and produce less power, so the stiffness in a traditional unisex frame may be too much, causing the frame to be heavier than needed and also uncomfortable. The second group of manufacturers, takes a unisex model, change out all contact points and change the paint job. And the third, they simply do not see a need for a womens specific model, but rather build their unisex bikes in the smaller sizes with a woman in mind
(Cervelo for example
).
The taller you are, the less of a need will you have for a woman specific bike.
The best option would be to spend $250 on a bike fit and $1750 on the perfect fitting bike. That's a better option than spending $2000 on the bike alone... Many times the cost
(or at least a large portion of it
) of the bike fit will be credited towards the purchasing price
(and $250 is on the higher side
). Find a reputable bike fitter in your area by talking to fellow triathletes, cyclists, etc. and ask who they use and recommend.
Edited by audiojan 2013-01-27 6:22 AM