Bike Sport

A bicycle is an at least two-wheeled, usually single-track land vehicle that is propelled solely by the muscular power of persons on it by pedaling or hand cranking. Due to the caster, a torque is generated during a steering deflection, which is directed against this as a restoring torque. As a result, the rolling vehicle steers itself back to (almost) straight ahead. The gyroscopic forces additionally stabilize the bicycle during travel depending on the moment of inertia and the speed. In addition, other factors such as mass distribution have an influence on the driving stability of single-track vehicles.

A unicycle has only one wheel, over which all tipping directions must be balanced. The tandem bike is a special form that allows two or more people to have their own seat and use their own muscle power. Special forms such as tricycles for children or senior citizens and three-wheeled recumbent bicycles have three wheels and are thus three-lane. Bicycle rickshaws (such as bicycle cabs) can be either three-wheeled or four-wheeled (two-lane). Another special type is experimental bicycles, which have a variety of running wheels or other muscle-powered forms of propulsion. There are specific legal regulations for the use of a bicycle on public roads in each country.