Honda unveiled two of its latest concept models in Japan: the Honda CB400 Super Four and CBR400RR Super Four.
Both new models were showcased at the 42nd Osaka Motorcycle Show 2026 held last week.
New Platform, New Engine
The CB400 Super Four and CBR400RR Four are built on an entirely new platform designed to prioritize riding pleasure.
Their engines are entirely new as well, featuring a four-cylinder inline design equipped with E-Clutch technology and a Throttle-by-Wire system.
For your information, E-Clutch technology simplifies gear shifting for riders without the need to pull a clutch lever. However, riders still have the option to operate it manually.
CB400 retains ‘Steel Tank’ tradition
In a special interview, Asato Kato, the designer, emphasized that the CB400 Super Four must retain its iconic identity, particularly the steel tank.
During the design phase, Kato explained that the choice of materials and the shape of these components is something that cannot be compromised.
Additionally, modern motorcycles feature more complex frame structures, making it challenging to create traditional tank shapes as seen in the past.
Because of this, most models use resin, but for Kato, a CB400 Super Four must have a steel tank.
“In my opinion, a steel tank is essential to beautifully represent that balance, and I will not give up even though it is challenging to produce.”
Kato also employed clay modeling techniques to demonstrate that his ideas can be realized.
The Best Machine Ever Produced
With a new engine and chassis combination, the CB400 Super Four offers benefits such as more powerful performance, a lightweight chassis, and improved handling.
As it approaches the final stages of development, the machine has also been personally tested by the R&D team at a secret location in Japan.
“This bike is the best!” This is the feedback collected from the team of designers, engineers, and test riders who have personally evaluated the CB400 Super Four.
