A 4-cylinder engine has the highest power-to-body weight ratio of all bike engines but will also has the lowest vibrations and best stability as a result of quite small firing intervals. There are various configurations of four-cylinder engines based on the angle in between the cylinders: A radial-triple engine has https://minibikeengines48048.ziblogs.com/35205495/new-step-by-step-map-for-bike-engine-kit