Kawasaki answered the new large four-cylinder era with a 903 cc DOHC engine and a road bike positioned at the very top of the performance market.
Why it matters. One of the foundational Japanese superbikes and a defining Kawasaki model name.
Motorcycles / Kawasaki / Z1 900
Motorcycle museum record
Z1 900
Kawasaki answered the new large four-cylinder era with a 903 cc DOHC engine and a road bike positioned at the very top of the performance market.
Kawasakimanufacturer
roadstercategory
903 ccengine capacity
Air-cooled DOHC inline fourengine
Museum plaque
Why this bike belongs here.
One of the foundational Japanese superbikes and a defining Kawasaki model name.
Technical identity
The engineering at a glance.
This first expansion records museum-level specifications rather than pretending every year and market used one immutable specification.
EngineAir-cooled DOHC inline four
Capacity903 cc
Production era1972–1975
CategoryRoadster
TransmissionAdd by variant/year
Final driveAdd by variant/year
Research starting point
Built to improve, not freeze.
Model-year specifications can vary. The museum keeps the stable historical interpretation here and leaves room to add exact variants, racing derivatives, engine codes and source-specific specifications later.
Kawasaki source / heritage starting point
Open source ↗
Open source ↗