Answer with Explanation:
The writers of the Foreword and Introduction hope to enlighten people regarding the role of women in the past and how the bicycle helped them in achieving their liberty.
It tries to influence readers to take on the side of women and become involved in their pursuit of freedom with the help of a common form of transportation (the bicycle).
I believe the author's purpose in writing the book is to inspire the readers that even novel things can have a great impact on people's lives, just as the bicycle has on the lives of women whether it be their physical movements, fashion and relationships with other people and so on.