What is the difference between a motorcycle pushrod engine and a chain engine?

[TaylorDella]

The difference between a motorcycle pushrod engine and a chain engine lies in their structure and power output. Below are the specific distinctions: Structure: A chain engine can increase speed and enhance power under the same displacement. A pushrod engine itself is not suitable for high-speed operation. To avoid the drawbacks of high speeds, it provides greater torque at medium to low speeds (commonly used range). Power Output: The simplest way for a chain engine to improve performance is by altering the cylinder diameter and stroke, which a pushrod engine cannot match. Chain engines generally focus on high-speed power output (without changing the cylinder capacity, increasing the cylinder diameter and shortening the stroke helps improve speed).