Kawasaki Z1 900

Kawasaki Z1 900

The Kawasaki Z1 900, introduced in the early 1970s, is a motorcycle that played a pivotal role in the superbike era, setting new standards for performance and speed. Here’s a detailed description of this iconic model:

Model: Kawasaki Z1 900

Key Specifications:

  • Years: The Kawasaki Z1 900 was introduced in 1972.
  • Engine: The Z1 900 featured a powerful four-stroke, transverse four-cylinder engine, marking a significant departure from the traditional inline-four motorcycles of its time.
  • Capacity: The engine had a displacement of 903 cc, making it one of the largest and most powerful motorcycles of its era.
  • Bore x Stroke: The engine’s bore and stroke measurements contributed to its performance characteristics.
  • Cooling System: The Z1 900 utilized an air-cooling system, a common feature in high-performance motorcycles.
  • Compression Ratio: The engine’s compression ratio played a crucial role in optimizing combustion for enhanced performance.
  • Induction: The motorcycle featured carburetors for fuel induction, providing an efficient air-fuel mixture for combustion.
  • Ignition: The Z1 900 likely employed a traditional points or contact breaker ignition system.
  • Starting: Electric and kick-starting mechanisms were typically available for the Z1 900, offering convenience and flexibility.
  • Max Power: The Z1 900 delivered a substantial maximum power output, contributing to its superbike status.
  • Suspension: The motorcycle featured front telescopic forks and rear dual shocks, providing a balance between comfort and performance.
  • Brakes: The Z1 900 likely had front and rear disc brakes, representing advanced braking technology for its time.
  • Wheels and Tires: Fitted with appropriate tires for its high-performance nature, the Z1 900 featured durable wheels capable of handling its power.
  • Frame: The frame design was sturdy and designed for stability, contributing to the motorcycle’s handling characteristics.
  • Fuel Capacity: The fuel tank had a capacity suitable for long rides, reflecting the Z1 900’s touring capabilities.

Additional Features:

  • The Kawasaki Z1 900 is widely recognized for its role in shaping the superbike category, setting a new standard for speed and performance.
  • Known for its distinctive styling, the Z1 900 featured a unique design that became iconic in the motorcycle world.
  • The model’s success contributed to Kawasaki’s reputation as a manufacturer of high-performance motorcycles.

The Kawasaki Z1 900 remains a classic and influential motorcycle, leaving a lasting legacy in the history of motorcycling and superbike development.

ModelZ1 900
EngineFour-stroke, transverse four-cylinder, DOHC, 2 valves per cylinder
Capacity903 cc / 55.1 cu-in
Bore x Stroke66 x 66 mm
Cooling SystemAir cooled
Compression Ratio8.5:1
LubricationWet sump, trochoid pump
Air FiltrationTreated synthetic fiber
Induction4 x 28mm Mikuni VM28SC carburetors
IgnitionBattery and coil
StartingElectric & kick
Max Power82 hp / 59.8 kW @ 8500 rpm
Max Torque73.5 Nm / 54.3 lb-ft @ 7000 rpm
ClutchWet, multi-plate
Transmission5 Speed
Final DriveChain
Primary DriveStraight cut gears
Gear Ratio1st 12.79:1 2nd 8.84:1 3rd 6.74:1 4th 5.58:1 5th 4.92:1
FrameDouble tubular steel cradle
Front Suspension36mm Telescopic forks
Rear SuspensionDual shock, 5-way preload adjustment
Front BrakesSingle 296mm disc, 2-piston caliper
Rear Brakes200mm drum
Front Tyre3.25 H19
Rear Tyre4.00 S18
Trail3.75 in.
DimensionsLength 2209.8 mm / 87.0 in.
Wheelbase1498.6 mm / 59.0 in
Handlebar Width818 mm / 32.2 in.
Seat Height812.8 mm / 32.0 in.
Ground Clearance170 mm / 6.75 in.
Dry Weight230 kg / 507 lbs
Wet Weight247.6 kg / 546 lbs
Fuel Capacity18 Litres / 4.7 gal
Consumption Average48 mpg
Braking Distance 30 mph – 029.00 ft.
Braking Distance 60 mph – 0126.00 ft.
Acceleration 0-30 mph2.7 sec
Acceleration 0-60 mph4.8 sec
Standing ¼ Mile12.61 sec / 105.63 mph
Top Speed217 km/h / 135 mph
Road TestCycle Test Cycle World
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