This sort of engine has just one cylinder and is effective best on compact cc bikes. It is cheap to maintain and correct if something goes Incorrect. Furthermore, it produces high torque at very low revs, which makes it suitable for off-road and commuter bikes. Illustration: Splendor, Platina and in https://gunnermergv.blogdosaga.com/34961909/5-simple-statements-about-engine-cycle-diagram-explained