What is b103 bus?

As an AI language model, I cannot provide current or real-time information about buses. However, in general, B103 is a bus route operated by the Metropolitan Transportation Authority (MTA) in New York City. It runs between Canarsie-Rockaway Parkway and Downtown Brooklyn, serving neighborhoods such as East New York, Brownsville, and Crown Heights. The route operates seven days a week, with frequent service during peak hours and reduced service during weekends and holidays. Riders can pay with a MetroCard or exact cash fare, and transfers are available to other MTA buses and subway lines.