The WSD bikes are different. The toptube is shorter for the frame size and they normally have better saddles for the female butt- bars are narrower and brake levers may have a shorter reach or have shims in to bring the levers closer to small hands.
But to get a shorter toptube-in a mens bike you would have to go down a frame size and extend the seat post. There is normally some adjustment in the bar height and although mens frames do suit some females- if the WSD frame fits better- then that is the one to go for.
I am male but bought an OCR3 3 years ago. I can recommend this bike as a good reasonably price bike that works.
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How long was I in the army? Five foot seven.
Spike Milligan