Well I can’t answer it because I don’t know the story, but I can tell you this. Look for context clues and words around the sentence that can help explain the meaning of it.
"wheels of change" tells the story of the impact of the bicycle on women´s lives from 1870´s to the early years of the 20th century. It tells the stories of women who rode bicycles for fun, for profit, and to make a statement about women´s rights or women roles in the world. Illustrated liberally with photographs, maps, advertisements and cartoons, as well as contemporary songs, poems and newspaper clippings, the book helps readers travel to a time gone by to see firsthand how women used the bicycle as a vehicle to improve their lives.