—Kayla R., Lima, Ohio I think you should focus on fit, for safe riding. Aside from the top tube, women’s and men’s bikes differ in ways that tend to suit each sex’s body type. Women usually have shorter torsos and longer legs than men of the same height, so their bikes are a bit shorter, and they adjust the seat higher. (And the seats themselves differ for comfort.) Their bikes also have shorter handlebar stems and narrower handlebars. But if a boys’ bike fits you just right, you’re in luck!