BP400 is a weeklong bike tour and fundraiser that benefits the Boston Cyclists Union’s (BCU) work to improve biking for everyone in Boston. In 2026, participants will ride nearly 400 miles over five days from Boston, MA to Philadelphia, PA
BP400 is a gateway to biking longer distances, a leadership pipeline for bike advocacy, and a major source of support for the BCU’s work to make biking better in Boston. Most importantly: It’s an amazing bike adventure!