Come to Watertown Square dock-Galen St bridge. (Sunday 5/20 is rain date)  Bay State Bike Week is 5/12-5/20. Every May, Massachusetts residents and bike commuters come together to celebrate human-powered, two-wheeled transportation during Bay State Bike Week (BSBW). From Cape Cod to the Berkshires and everywhere around and in between, Commonwealth participants organize bike-centric events to encourage new riders and raise awareness about bicycle transportation.  Sponsored by MassBike.