Some announcements go by unnoticed. And then there are those that awaken a generation. What Honda just did in Osaka clearly belongs to the second category. Because behind these seemingly innocuous names – CB400 Super Four and CBR400R Four – lies a declaration of industrial war. And not just any declaration: the deliberate return of the four-cylinder engine to small-displacement motorcycles. Yes, Honda is bringing back an architecture that many thought was long gone.
Unveiled at the 2026 Osaka Motorcycle Show, these new machines are based on a brand-new platform, already seen in the 500cc version… but now adapted for the 400cc segment, a strategic market in Japan due to licensing and tax considerations. And behind this decision lies a very clear idea: to regain control of a segment that is slipping away from established manufacturers.
Car Honda does not just launch two motorcycles. Honda revives a philosophy.
La CB400 Super FourProduced from 1992 to 2022, it alone embodied the spirit of the classic Japanese motorcycle: a smooth, linear, almost noble four-cylinder engine. Its discontinuation left a void. A void that modern twin-cylinder engines, more economical but less emotionally engaging, have never truly filled.
And now Honda It's back… with exactly what the market no longer dared to expect.
A compact 4-cylinder engine. Probably more responsive, with higher revs, and that metallic sound that enthusiasts have never forgotten. And above all, a positioning that goes beyond mere technical specifications: pure driving pleasure, not just efficiency.
The same logic applies to the CBR400R FourThis revives a legendary lineage born in the 80s, a time when Japanese 400cc motorcycles were veritable miniature racing machines. Both machines incorporate the Honda E-Clutch system: This system allows starting, stopping, and changing gears without ever touching the clutch lever (which is still available for those who prefer manual control).
Unlike DCT (automatic), you still shift gears with the selector, but the electronics manage the clutch actuation ultra-fast.
The return of the inline 4-cylinder engine at Honda
But that's not the most interesting point. The real message is strategic. While the global market is flooded with practical motorcycles, often twin-cylinder, often produced at low cost – particularly in China – Honda It's taking an almost contrarian gamble: to reintroduce complexity, and therefore character. And that's never neutral.
Because a 4-cylinder engine is more expensive to produce. More demanding. Less “logical” in a world obsessed with profit margins and industrial efficiency. But it's also a formidable emotional weapon. And Honda known.
On Reddit, some enthusiasts are already summarizing the mindset with a touch of admiring irony:
"It will be interesting to see if these products will be exported…“Everyone wants it… but nobody knows yet if Honda will truly dare to globalize them.
And that's where everything hinges. If these models remain confined to Japan, it will be a marketing ploy.
But if they arrive in Europe… then it will be an earthquake.
Because that would mean one very simple thing: the war of the little ones sports and premium roadsters have just restarted.
It front of Kawasaki ZX-4RR, to CFMOTO extension and other Chinese outsiders, Honda It doesn't respond with price. It responds with DNA.
And in an industry that is starting to lose its soul through excessive optimization… this kind of choice can change everything.
Honda has finally listened to the purists. The return of the 4-cylinder's "howl" at 15,000 rpm in a small-displacement motorcycle is a bold gamble in the face of the growing power of Chinese manufacturers (CFMoto, Kove). With the E-Clutch, Honda makes these motorcycles not only exciting for veterans, but also extremely accessible for new licenses.
