Bicycles can be enjoyed by both, women and men. Nevertheless, the way both genres behave when riding use to be different. Studies say women tend to ride at lower speed without competing between them (at least at no professional level) and appreciate much more landscapes in routes, whereas men tend to be more competitive with more testosterone, ride at higher speed and do not put so much attention to sceneries.
At psychological level, women do not usually speak openly to men regarding common problems they face when biking. On the contrary, they feel more confident to talk about their issues to other women. Moreover, car drivers act differently in arguments with a bike ridden by a woman or a man. If a woman is biking and a dispute with a male car drive takes place, the car driver acts as a beast feeling he has the right to yield or insult the woman even if he is wrong and malicious in his reasoning (supposing he has one since sometimes he has nothing to clutch at straws). In contrast, if a man rides the bike, the male car driver does not show himself so aggressively as he innerly know he could loss in a fight. This animal behavior is another example of the patriarchal society we suffer.
Here I have exposed some reasons because women need women-gender spaces to share ideas and empower themselves. Feminism is a global movement which looks for women to have the same rights as men. Biking is just another field in which come out. As a result of it, changes have been producing. For example, the Iberian Congress was initially opened to both genres, but in the Zaragoza edition they decided to give a space only to women with the creation of the Cyclist Women Meeting. This meeting was repeated in the Valencia edition and it was agreed to differentiate it with an appropriate event by women to women. The Iberian Congress is not expected to count with the Cyclist Women Meeting anymore, which will be an independent event held in a different place and date.