May 17 marks National Bike to Work Day.
According to National Calendar, the month of May is National Bike Month, with National Bike to Work Day taking place on the third Friday in May.
In the United States, from the year 2000 to 2011, the number of bicycle commuters grew by more than 47 percent.
National Bike to Work Day is an effort to promote a healthier alternative to the work commute.