Kawasaki Z1 900
The Kawasaki Z1 900 was introduced in 1972 as a direct response to Honda's CB750, and quickly established itself as the most powerful production motorcycle of its era. It featured a revolutionary dual overhead cam (DOHC) 903cc inline-four engine that outperformed all competitors, earning it the nickname 'King of the Streetbikes.' The Z1 laid the foundation for Kawasaki's Z-series lineage and is widely regarded as one of the most influential motorcycles in history, helping define the modern superbike era.
82 hp
Power
74 Nm
Torque
230 kg
Weight
209 km/h
Top Speed
6.5 L/100km (approx. 15.4 km/L) — estimated real-world average
Fuel
Naked
Body
What Buyers Should Know
Watch for Cam Chain
The Z1's DOHC engine is prone to cam chain tensioner wear, which causes a rattling noise at startup. Always listen carefully before buying and budget for a tensioner rebuild if needed.
Strong Resale Value
Clean, original Z1 900s (1972–1976) consistently fetch $8,000–$20,000+ depending on condition, making them one of the most appreciating classic Japanese motorcycles. Matching numbers and original paint dramatically increase value.
Pioneering DOHC Engine
The Z1 was the world's first mass-produced DOHC four-cylinder motorcycle, producing 82hp — revolutionary for 1972. This historic significance is a major reason collectors and enthusiasts continue to seek them out.
Full Specifications
Rivals & Alternatives
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