The bicycle cushion is a bicycle accessory that directly contacts the buttocks during riding. It determines the comfort of the riding process. It consists of 4 parts and can be divided into two types. Narrow and slender hard seat cushion. This narrow hard seat cushion is commonly found on sports bikes and is designed for high-speed cruising. A wide and soft comfortable seat cushion, which is more common in entry-level vehicles or leisure-oriented bicycles, is designed for slow cruising.