The very first 4-stroke engine came into being due to hard work of Nicolaus Otto. It was invented in 1876. This was quite innovative operational principle of mechanical combustion engine at that time. Some experts call it “Otto cycle”. We’re speaking of 4-stroke operation of power plant, which is
Two-stroke combustion engine is an important achievement of humanity on the way to sci-tech perfection. With all its advantages and disadvantages, bikes equipped with 2-stroke engine are capable to serve as long as the ones with 4-stroke engine.