Bimota has revealed the new KB399 and it already feels very different from a regular middleweight bike. It uses a strong base but adds its own touch in many areas.
At its core, the bike is built on the Kawasaki Ninja ZX-4RR platform. That means it gets a high revving inline four engine that is already known for performance.

Engine and base setup
- 399cc liquid cooled inline four engine
- Around 78 to 80 hp output
- Revs beyond 14000 rpm
- Same base and core specs as ZX-4RR
- Quickshifter comes as standard
- Traction control with three modes
The bike keeps the strong base but adds more premium hardware.

What Bimota has changed
- New body design inspired by KB998 Rimini
- Winglets added for sporty look
- Custom Akrapovic exhaust as standard
- Billet aluminium parts across the bike
- Lighter rear section for better balance
Chassis and hardware upgrades
- Steel trellis frame setup
- Around 189 kg weight
- 41 mm Showa front suspension
- Showa rear shock on standard model
- Ohlins rear shock on ES version
- Brembo Stylema front brake callipers
Two versions are offered
- Standard version with full setup
- ES version with carbon body panels
- ES also gets more premium components
It carries a clear Italian design touch and clearly looks sharper than the donor bike. Every panel and part feels more focused on performance and style.
Conclusion
This bike takes a known engine and pushes it further with better parts and sharper design. It feels more special without changing the core too much.
