Hen Party of young women, boarding a Belfast party bike, in the city centre, Fountain St, - world of pain say PSNI

A party bike, fietscafé, bierfiets, beer bike or bar bike is a multi-passenger human powered vehicle, invented in 1997 by Het Fietscafe BV from the Netherlands. A party bike is sometimes mistaken for a larger-scale version of a pedicab (cycle rickshaw), but it is not, since the party bike is powered by the passengers, while the steering and braking is controlled by a driver who does not provide pedaling power. Some also double as rolling refreshment stands. Human-powered party bikes have grown into several families of vehicles for a variety of purposes, including tourist rentals and private touring. Party bikes are often used for staff parties and bachelor or bachelorette parties. They are often available at tourist attractions where they are rented by the hour or day and often serve as a rolling refreshment stand. When used in conjunction with alcohol, a party bike usually is hired with a driver. Construction A modern tourist party bike usually features open seating for eight or more riders in a sociable configuration. These vehicles are often designed to look like early 20th century trolley cars and have side seating for the pedalers, a bench seat in the rear, rack-and-pinion steering, and a canopy top. A few manufacturers offer an electric assist motor to aid the riders on hilly terrain. Modern party bikes are typically fifteen to twenty feet long, seven feet wide and eight feet tall. Because they are driven on municipal streets, some have headlights, tail lights, and turn signals, as well as lighting for use at night These pubs-on-wheels have become popular in the United States, as well as the Netherlands, Belgium, Germany and France. Some party bikes can have up to 16 cycling passengers, three non-cycling passengers, bar tenders and a driver. In many European municipalities, it is legal to consume alcohol while pedaling or riding on the party bike, provided the driver is not imbibing