The iconic Kawasaki KX with a two-stroke engine is back! On Saturday, January 25, shortly before the start of the Anaheim 2 Supercross, Kawasaki released a statement that thrilled motocross fans.
The published video showed several comments asking for the return of two-stroke motorcycles, followed by the brand’s response: “We heard you,” with the sound of a two-stroke engine revving in the background.
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This news marks the return of Kawasaki’s two-stroke motorcycles, whose production ended nearly two decades ago. The last KX125 model was manufactured in 2006, while the KX250 left the market in 2007. Now, in 2025, Kawasaki is preparing to relaunch these iconic machines, reigniting the passion of enthusiasts.
Although details about the new model are still scarce, Kawasaki’s decision has surprised the market. In a scenario where many brands are investing in electric motorcycles, the choice to bring back two-strokes is undoubtedly bold — and strategic. The two-stroke market remains strong, especially as inflation drives up overall costs. Consumers have favored these machines for their lower maintenance costs and the fun they provide.
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There are speculations that Kawasaki might adapt the new two-stroke engine to the modern frames of its KX250 and KX450, rather than reviving the old steel chassis. If this happens, it will be an example of innovation and platform sharing to please both nostalgic fans and contemporary riders.
We now await more information and, of course, the first images of this new generation of two-strokes. Kawasaki’s announcement is, in itself, a milestone that promises to shake up the motocross market.
Difference between two-stroke and four-stroke engines
The main difference between two-stroke and four-stroke engines lies in their operation and efficiency. The two-stroke engine completes the combustion cycle in just two steps (one crankshaft revolution), while the four-stroke engine performs the same cycle in four steps (two crankshaft revolutions). This makes the two-stroke engine lighter, simpler, and more powerful per displacement but less efficient and more polluting, as it consumes more fuel and lubricating oil. On the other hand, the four-stroke engine is more complex and heavier but more economical, durable, and environmentally friendly, making it ideal for prolonged use and regulated by emission standards.
Source and images: Instagram @kawasakiusa. This content was created with AI assistance and reviewed by the editorial team.