Kawasaki GPX 600 R (reduced Effect) - 1989 Specifications and Reviews

The 1989 Kawasaki GPX 600 R is a lightweight sport-touring motorcycle designed for novice riders and commuters seeking manageable performance. Its 592cc inline-four engine produces 50 horsepower in a restricted configuration, offering an accessible entry point to middleweight motorcycles. Known for its nimble handling and fuel efficiency, the GPX excels as a practical daily rider with enough capability for weekend riding.

1989
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General information

CategorySport touring
Year1989
ModelKawasaki GPX 600 R (reduced effect)
 
 

Engine and Transmission Specifications

Transmission typefinal driveChain
Gearbox6-speed
Cooling systemLiquid
Fuel controlDOHC
Valves per cylinder4
Bore x stroke60.0 x 52.4 mm (2.4 x 2.1 inches)
Compression11.7:1
Power50.00
Stroke4
Engine typeIn-line four
Capacity:592.00 ccm (36.12 cubic inches)

Physical measures and capacities

Weight incl. oil, gas, etc206.0 kg (454.2 pounds)
 
 

Kawasaki GPX 600 R (reduced Effect) dimensions and frame

Rear brakesSingle disc
Front brakesDual disc
Rear tyre dimensions130/90-16
Front tyre dimensions110/80-16

Speed and acceleration

Top speed183.0 km/h (113.7 mph)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Fuel capacity19.50 litres (5.15 gallons)

Performance Profile & Rider Fit

50 hp
Peak Power
6.5s
0-60 mph
113.7 mph
Top Speed

Best For

Track35%
City55%
Cornering55%
Daily Riding58%
Touring55%
Passenger45%

Rider Profile

Best ForThis is a restricted 'reduced effect' variant of the GPX600R, likely detuned for novice or licence-restricted riders, so it suits newer riders more than experienced sportbike veterans.
PurposeBuilt as an accessible sport tourer, it blends inline-four smoothness with modest power for learning proper cornering and throttle control without overwhelming performance.
Rider FitIts moderate weight and period sport-touring ergonomics make it manageable for riders of average size and fitness, without demanding aggressive off-road strength or extreme reach.
CharacterIt has the eager, high-revving personality typical of a small inline-four, but tamed to feel forgiving and predictable rather than thrilling.
Not Ideal ForIt is not suited for riders seeking genuine high-speed sport performance, serious touring range, or any off-road capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Reviews

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