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Sport · 1981

GPZ 1100 F 1

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MotoLibrary Score
64 /100 Sporty
Power
100 HP
Top Speed
228 km/h
Engine
1089 ccm

1981 Kawasaki GPZ 1100 F 1 Technical Analysis & Specification Breakdown

Engineered by Kawasaki for the sport motorcycle segment, the 1981 Kawasaki GPZ 1100 F 1 utilizes a 1089 cc (66.5 cu in) air-cooled in-line four, four-stroke layout. In factory specification, peak output is rated at 100 HP (73 kW) at 8,750 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 91.8 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

On the scales, the GPZ 1100 F 1 measures 266 kg (586 lbs) wet (curb), translating to a power-to-weight ratio of 0.38 HP/kg (2.66 kg per horsepower). The 21-liter (5.5 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 228 km/h (142 mph).

Specific Output
91.8 HP/L
Power-to-Weight
0.38 HP/kg (2.66 kg/HP)
Engine
Displacement 1089.0 ccm (66.45 cubic inches)
Engine Type In-line four, four-stroke
Engine Details In-line four, four-stroke
Power 100.0 HP (73.0 kW)) @ 8750 RPM
Compression 9.5:1
Bore x Stroke 72.5 x 66.0 mm (2.9 x 2.6 inches)
Valves/Cylinder 2
Fuel Control Double Overhead Cams/Twin Cam (DOHC)
Cooling Air
Transmission
Gearbox 5-speed
Final Drive Chain (final drive)
Performance
Top Speed 228.0 km/h (141.7 mph)
Wheels & Brakes
Front Tyre 3.25-19
Rear Tyre 4.25-18
Front Brakes Dual disc
Rear Brakes Single disc
Dimensions & Weight
Weight incl. 266.0 kg (586.4 pounds)
Fuel Capacity 21.00 litres (5.55 US gallons)
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Rider Profile

Who Is This Bike For?

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Intermediate
Requires some riding experience.
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Best For
Sport & Track
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