They are bicycles that are usually produced with shock absorbers and have thicker and toothed tyres designed for use in difficult terrain conditions. It is usually produced in 26 - 27.5 and 29 rim sizes.

It is a type of bicycle with a light, rigid frame structure and designed for use on the road with thin tyres. They do not have shock absorbers to transmit higher speed and power directly to the road. The weight of road bikes, which usually have 28" wheel size, varies between 7 - 12 kg.

It is a folding bicycle model that usually has 16" and 20" wheel size and can weigh 11 - 14 kg. It is designed for urban use, especially for use in public transport.

There are child’s bike models with aluminium and steel frames, usually the weight difference is not much because the frame is small, and there is not much difference between the equipment. If it will be used in slope areas, geared models can be preferred. 12,14,16,20 and 24 rim models are generally classified as child’s bike.

Their frames can be steel or aluminium. There are suitable luggage holes for carrying goods. Geared models should be preferred for hilly cities. Tour bikes, which are a type of city bikes, have medium-thick, treadless tyres and 28" size rims.