The CBR250R engine was developed by aiming at a global single-cylinder engine that transcends regions, while being sporty and eco-friendly at the same time, with a look ahead at the next generation.
What should a next-generation liquid-cooled 250cc single-cylinder engine that is also ecofriendly be like?
What should the output characteristics of a 250cc single-cylinder sport bike be when the comfort and the ease of handling that can satisfy customers all over the world are taken into account?
How can an engine that is light and compact and yet has a high-quality feel be able to support the ride as the rider wants it?
With these questions in mind and aiming at the output characteristics that would realize a light and sporty maneuverability in the complete vehicle while retaining the advantages of fuel economy and ease of handling of conventional single-cylinder engines, we have developed a new 250cc single-cylinder engine that is light and compact and runs smoothly not just at low rpm but also in the high rpm range.
Newly-developed liquid-cooled 4-stroke DOHC single-cylinder engine