Atricycle is avehicle with three wheels. It can be also called atrike. Tricycles can have pedals, anelectric motor or apetrol engine.
A child's tricycle is best known, but adult tricycles are becoming more common. The adult trikes will have a chain, gears and are recumbent (the feet are in front of the body). They come in two main styles:tadpole with two wheels up front and one in back anddelta with two wheels in the back and one wheel in the front.[1] Almost always the front wheel or wheels steer the bike, and power goes to the back wheel or wheels.
Some trikes arefully faired (covered in a shell to cut wind resistance). These are calledvelomobiles.
Other trikes are built to carrycargo or passengers (also called acyclerickshaw orpedicabs).
Motorcycles also come in three wheeled versions. Some people like them for better balance or more room.[2]
