This paper compares travel mode choice for urban commutes in Mexico City in 2007 with 2017. After a decade, gender, car ownership, and income still determine car use. The use of bikes more than doubled in the past decade. A decade ago, educated, older, and wealthier people were not likely to use a bike to commute, but not anymore. Two dangerous trends call for action in the policy arena: In 2007, longer trips were more likely to use public transportation, while in 2017, longer trips were more likely to use a private car instead. Gender inequality is exacerbated because in 2017, as in 2007, women were more likely to commute by transit, while men were more likely to commute by car