The world of high-performance motorcycles is a thrilling arena, and today, we delve into the realm of the quickest street-legal factory-built bikes, ranked by their 0-60 acceleration times. It's a fascinating journey through the limits of engineering and human desire for speed. This list showcases the pinnacle of motorcycle performance, where every second counts and every horsepower matters. From the iconic to the avant-garde, these bikes are not just machines; they are symbols of power and precision. Each one on this list has earned its place through rigorous testing and impressive performance metrics, making them the cream of the crop in the world of street-legal speedsters. Whether it's the raw power of a Japanese liter bike or the sleek elegance of a European supercycle, these machines are a testament to the art of engineering and the pursuit of velocity. So, let's embark on this thrilling ride and explore the top contenders in the world of quick street-legal motorcycles.