Kawasaki GPZ1000RX (1987)

The Kawasaki GPz 1000RX was a 1987 motorcycle model with a transverse four-cylinder, 997cc engine and four valves per cylinder. The bike was liquid-cooled and had a compression ratio of 10.2:1. Its maximum power was 125 horsepower at 9500 rpm, but it reached 116.2 horsepower at 9750 rpm at the rear tire. The maximum torque was 10.1 kgf-m at 8500 rpm. The GPz 1000RX had a six-speed transmission with wet, multiple-disc clutch and cable operation. Its final drive was a chain, while its frame was steel twin spar. The motorcycle had 40mm telescopic forks with air assistance and AVDS on its front suspension and Uni-Trak rising-rate with adjustable rebound damping on its rear suspension. The front brakes used two 280mm discs and one-piston calipers, while the rear brake had a single 260mm disc and one-piston caliper. The bike had 120/80-16 front tires and 150/80-16 rear tires, with a seat height of 790mm. It weighed 238kg dry and 267kg wet, with a fuel capacity of 21 liters. The motorcycle was tested by Motosprint in 1987 and had a top speed of 255.5km/h and a braking performance of 13.4m from 60-0 km/h and 39.1m from 100-0 km/h. Its standing quarter-mile time was 10.7 seconds with a top speed of 206.8 km/h.

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Technical specifications:

Make Model: Kawasaki GPz 1000RX

Year: 1987

Engine: Four stroke, transverse four cylinders, 4 valve per cylinder

Capacity: 997 cc / 60.8 cu-in

Bore x Stroke: 74 x 58 mm

Cooling System: Liquid cooled

Compression Ratio: 10.2:1

Lubrication: Wet sump

Induction: 4x Keihin CVK 36 carburetors

Ignition: TCI (Transistor Controlled Ignition)

Starting: Electric

Max Power: 125 hp / 91.1 kW @ 9500 rpm ( 116.2 hp @ 9750 rpm )

Max Power Rear Tyre: 116.2 hp @ 9750 rpm

Max Torque: 10.1 kgf-m / 99 Nm @ 8500 rpm

Clutch: Wet, multiple discs, cable operated

Transmission: 6 Speed

Final Drive: Chain

Frame: Steel, twin spar

Front Suspension: 40mm Telescopic forks, air assistance and AVDS

Front Wheel Travel: 140 mm / 5.9 in

Rear Suspension: Uni-Trak rising-rate with adjustable rebound damping.

Rear Wheel Travel: 115 mm / 4.5 in

Front Brakes: 2x 280mm discs 1 piston calipers

Rear Brakes: Single 260mm disc 1 piston caliper

Front Tyre: 120/80-16

Rear Tyre: 150/80-16

Seat Height: 790 mm / 31.1 in

Dry Weight: 238 kg / 524 lbs

Wet-weight: 267.0 kg / 588.6 lbs

Fuel Capacity: 21 Litres / 5.5 US gal

Consumption Average: 14.5 km/lit

Braking 60 – 0 / 100 – 0: 13.4 m / 39.1 m

Standing 1/4 Mile: 10.7 sec / 206.8 km/h

Top Speed: 255.5 km/h / 158.7 mph

Road Test: Motosprint 1987 Group Test