The dead speed bike originated from track bicycles. The flywheel is fixed. If you step on the car forward, step on the car backward, then there are some alternative bicycle enthusiasts who use the abandoned track bicycle as a work vehicle, which can be fast in the city. Traveling, and the price is low, at the same time requires a certain riding skills. These characteristics make it popular among bicycle enthusiasts in Britain and the United States and other countries, and become a street culture. Major bicycle brands are also following up, developing and promoting dead-speed bikes, making them popular among the public and becoming the most popular bike style in the city. Pure dead-speed vehicles require certain technology and are dangerous. Therefore, the products developed by these manufacturers are dual-purpose dead-flying and live-flying, and are equipped with brakes to ensure safety.
