Single-speed bikes are bicycles designed with only one gear ratio, meaning they have no gear shifting options. This simplicity makes them easy to ride and maintain, as there are fewer components that can malfunction. They are ideal for flat terrains and urban commuting, where riders can maintain a consistent speed without the need for changing gears. These bikes are often lightweight and have a minimalist design, appealing to those who prefer a straightforward cycling experience. Popular among city dwellers, single-speed bikes are also known for their efficiency and lower cost compared to multi-gear bicycles. They are a great choice for casual riders and short-distance travel.