Why is "Bicycling and feminism" trending?

Wikipedia Overview

The bicycle has had a significant impact on the lives of women in a variety of areas. The greatest impact the bicycle had on the societal role of women occurred in the 1890s during the bicycle craze that swept American and European society. During this time, the primary achievement the bicycle gained for the women's movement was that it gave women a greater amount of social mobility. The feminist Annie Londonderry accomplished her around-the-globe bicycle trip as the first woman in this time. Due to the price and the various payment plans offered by American bicycle companies, the bicycle was affordable to the majority of people. However, the bicycle impacted upper and middle class white women the most. This transformed their role in society from remaining in the private or domestic sphere as caregivers, wives, and mothers to one of greater public appearance and involvement in the community. In the 21st century bicycling remains a contentious issue addressed by feminists in countries such as Saudi Arabia and Iran.