There have been many human powered vehicles designed and constructed specifically for transporting loads since their earliest appearance in the 20th century.

Adjectives used to describe the tasks to which the bicycles, dicycles, tricycles, or quadracycles are put include cargo cycles (bi- / tri- / etc.

[citation needed] With the domination of the internal combustion engine in the industrialized countries after World War II, cargo bikes became less popular.

[citation needed] In Amsterdam many residents simply fit large front carriers to sturdy city bicycles.

An occasional four-wheeler can also be seen, especially within a plant, warehouse or the like, where demands on stability and loading capacity are higher than on range.

Many models are now available with an electric assist which can make them more useful for longer distances or for varied terrain, i.e. not flat cities, amongst other reasons, such as feeling more confident riding in car traffic due to faster acceleration from stopping.

Often, they would also feature a sign advertising the business concerned, which would be attached within the main triangle of the bicycle frame.

This style of bicycle is useful for carrying cargo, including children, and can function as a car replacement for many families.

[12] It is possible to install a carseat in the box to for babies, and when children get older, they are often seated on a small bench and clipped in with a 3- or 5-point harness.

Canopies can be affixed to the cargo box for protection from the elements, making a warm and inviting space for children to enjoy the ride.

[13][14][15] The extended rear facilitates use as a cargo bike or carrying multiple or adult passengers compared with shorter bicycles.

Surly were asked by Xtracycle to build a complete Xtracycle-compatible frameset; the result was the 'Big Dummy', first released for the 2008 season.

The chukudu (or chikudu, cbokoudou) is a two-wheeled vehicle similar to a scooter used in the east of the Democratic Republic of Congo.

Tricycles can also be fitted with a lockable weatherproof box, usually of aluminium construction, for valuable goods and where the rider has to leave the vehicle.