Bimota KB399 Based on Kawasaki Ninja ZX-4RR Revealed

The Italian brand Bimota has unveiled the KB399, a lightweight supersport derived from the Kawasaki Ninja ZX-4RR. This collaboration blends Kawasaki’s high-revving inline-four engine with Bimota’s signature chassis engineering, creating a premium 400cc supersport aimed at enthusiasts who crave track-ready performance in a compact package.

Engine & Performance

At the heart of the KB399 lies the same 399cc inline-four engine from the Kawasaki platform. This motor is known for its high-revving nature, producing around 77 PS (with ram air) and delivering thrilling top-end performance—rare in the 400cc segment.

Unlike typical single or twin-cylinder rivals, this inline-four setup offers smoother power delivery and a distinct supersport character. The ZX-4RR top speed is around 200 km/h, making it one of the fastest bikes in its class. Expect the KB399 to retain similar performance but with sharper throttle response and improved riding dynamics.

Chassis & Handling

Bimota is renowned for its handcrafted frames, and the KB399 is no exception. While it borrows the core structure from the ZX-4RR, it features a redesigned lightweight chassis focused on agility and track precision.

With premium suspension tuning and refined weight distribution, the KB399 is expected to outperform the stock ZX-4RR in cornering stability and feedback. This makes it an ideal machine for riders searching for a track-ready motorcycle with enhanced handling dynamics.

Technology & Features

The KB399 inherits advanced electronics from its Kawasaki base, including traction control, multiple riding modes, and a quick-shifter. These features enhance both safety and performance, especially during aggressive riding.

In terms of design, Bimota elevates the bike with exotic styling, premium materials, and a more aggressive aerodynamic profile. This positions it as a high-end 400cc supersport bike, appealing to enthusiasts who value exclusivity and craftsmanship.

Specs Comparison Table

Conclusion

The Bimota KB399 is not just a rebadged motorcycle—it’s a refined, premium evolution of the Ninja ZX-4RR. With its exotic styling, enhanced chassis, and proven inline-four performance, it targets riders who want exclusivity without sacrificing performance.

For enthusiasts seeking a unique inline-four sportbike experience in the 400cc category, the KB399 stands out as a bold and exciting offering that blends Japanese engineering with Italian artistry.