What is a few line about bike?

Could you elaborate a bit more on what you mean by "a few lines about bike"? Are you looking for a brief overview of bicycles in general, their history, types, or perhaps their significance in modern society? Without a more specific prompt, I'll attempt to give a general introduction to bicycles. Bicycles, also known as bikes, are a form of human-powered transportation that have been in use for over two centuries. They consist of two wheels attached to a frame, with pedals and a seat for the rider. Bicycles have evolved over time, with various designs and features catering to different needs and preferences. Today, bicycles are used for a wide range of purposes, including transportation, recreation, fitness, and even as a mode of competition in sports such as cycling races. They offer numerous benefits, including being environmentally friendly, cost-effective, and providing a low-impact form of exercise. In conclusion, bicycles are a versatile and sustainable mode of transportation that have been an integral part of human society for centuries. They continue to evolve and adapt to the changing needs of riders, making them an essential part of modern life.