“What happened to the two-stroke?” is a question that is often asked but rarely answered without a tinfoil hat on. As usual, the internet has a few answers to that query, citing a bit of conspiracy and a bit of “corporate greed” as we have come to discover from the internet.
While the topic of two strokes can be long-winded and can get quite deep, there are a few sources that point to why four strokes began to dominate on the street and in professional racing circuits.