Is it better to use ejector pin or chain for motorcycle engine? Which one is better than the other?

The ejector pin machine and chain machine are only different in the structure of valve train, which is not necessarily related to torque.

In principle, the chain machine is definitely better than the ejector pin machine, but in fact, it depends on the manufacturing process. A well-made ejector pin machine is definitely better than a shoddy chain machine. If the quality is good, it can only be said that the ejector of "small displacement vehicle" pays more attention to the torque output at medium and low speed due to the limitation of principle, which is more practical.