Review Bimota KB4 RC (2026)

142 hp, 100 Units—and the Shortest Wheelbase in Its Class

Kawasaki engine, Bimota chassis, Öhlins suspension, Arrow exhaust, OZ Racing wheels, carbon-fiber components—and just 100 individually numbered examples worldwide. The KB4 RC is one of the most extravagant motorcycles you can buy with a street license. A test of a truly exceptional machine.

As of: March 17, 2026 | Tested model: Bimota KB4 RC (2026) | Price: on request (reference: approx. €42,000)

Engine: Kawasaki Reliability, Bimota Character

142 hp from 1,043 cc—this is the inline-four from the Kawasaki Ninja 1000 SX, and nobody should mistake that for a compromise. This engine has proven itself over decades as one of the most reliable four-cylinders in the segment, with hundreds of thousands of units running in the Z1000 and Z1000 SX. Kawasaki provides the foundation; Bimota builds something new upon it. The identical powerplant feels fundamentally different in the KB4 RC than it does in the Ninja because weight, wheelbase, and chassis geometry change everything.

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